1.
Pisa
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Pisa is a city in Tuscany, Central Italy, straddling the Arno just before it empties into the Tyrrhenian Sea. It is the city of the Province of Pisa. Although Pisa is known worldwide for its tower, the city of over 90,834 residents contains more than 20 other historic churches, several medieval palaces. Much of the architecture was financed from its history as one of the Italian maritime republics. The origin of the name, Pisa, is a mystery, while the origin of the city had remained unknown for centuries, the Pelasgi, the Greeks, the Etruscans, and the Ligurians had variously been proposed as founders of the city. Archaeological remains from the 5th century BC confirmed the existence of a city at the sea, trading with Greeks, the presence of an Etruscan necropolis, discovered during excavations in the Arena Garibaldi in 1991, confirmed its Etruscan origins. Ancient Roman authors referred to Pisa as an old city, strabo referred Pisas origins to the mythical Nestor, king of Pylos, after the fall of Troy. Virgil, in his Aeneid, states that Pisa was already a center by the times described. The Virgilian commentator Servius wrote that the Teuti, or Pelops, the maritime role of Pisa should have been already prominent if the ancient authorities ascribed to it the invention of the naval ram. Pisa took advantage of being the port along the western coast from Genoa to Ostia. Pisa served as a base for Roman naval expeditions against Ligurians, Gauls, in 180 BC, it became a Roman colony under Roman law, as Portus Pisanus. In 89 BC, Portus Pisanus became a municipium, Emperor Augustus fortified the colony into an important port and changed the name in Colonia Iulia obsequens. It is supposed that Pisa was founded on the shore, however, due to the alluvial sediments from the Arno and the Serchio, whose mouth lies about 11 kilometres north of the Arnos, the shore moved west. Strabo states that the city was 4.0 kilometres away from the coast, currently, it is located 9.7 kilometres from the coast. However it was a city, with ships sailing up the Arno. In the 90s AD, a complex was built in the city. During the later years of the Roman Empire, Pisa did not decline as much as the cities of Italy, probably thanks to the complexity of its river system. After Charlemagne had defeated the Lombards under the command of Desiderius in 774, Pisa went through a crisis, politically it became part of the duchy of Lucca
2.
Italy
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Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino, Italy covers an area of 301,338 km2 and has a largely temperate seasonal climate and Mediterranean climate. Due to its shape, it is referred to in Italy as lo Stivale. With 61 million inhabitants, it is the fourth most populous EU member state, the Italic tribe known as the Latins formed the Roman Kingdom, which eventually became a republic that conquered and assimilated other nearby civilisations. The legacy of the Roman Empire is widespread and can be observed in the distribution of civilian law, republican governments, Christianity. The Renaissance began in Italy and spread to the rest of Europe, bringing a renewed interest in humanism, science, exploration, Italian culture flourished at this time, producing famous scholars, artists and polymaths such as Leonardo da Vinci, Galileo, Michelangelo and Machiavelli. The weakened sovereigns soon fell victim to conquest by European powers such as France, Spain and Austria. Despite being one of the victors in World War I, Italy entered a period of economic crisis and social turmoil. The subsequent participation in World War II on the Axis side ended in defeat, economic destruction. Today, Italy has the third largest economy in the Eurozone and it has a very high level of human development and is ranked sixth in the world for life expectancy. The country plays a prominent role in regional and global economic, military, cultural and diplomatic affairs, as a reflection of its cultural wealth, Italy is home to 51 World Heritage Sites, the most in the world, and is the fifth most visited country. The assumptions on the etymology of the name Italia are very numerous, according to one of the more common explanations, the term Italia, from Latin, Italia, was borrowed through Greek from the Oscan Víteliú, meaning land of young cattle. The bull was a symbol of the southern Italic tribes and was often depicted goring the Roman wolf as a defiant symbol of free Italy during the Social War. Greek historian Dionysius of Halicarnassus states this account together with the legend that Italy was named after Italus, mentioned also by Aristotle and Thucydides. The name Italia originally applied only to a part of what is now Southern Italy – according to Antiochus of Syracuse, but by his time Oenotria and Italy had become synonymous, and the name also applied to most of Lucania as well. The Greeks gradually came to apply the name Italia to a larger region, excavations throughout Italy revealed a Neanderthal presence dating back to the Palaeolithic period, some 200,000 years ago, modern Humans arrived about 40,000 years ago. Other ancient Italian peoples of undetermined language families but of possible origins include the Rhaetian people and Cammuni. Also the Phoenicians established colonies on the coasts of Sardinia and Sicily, the Roman legacy has deeply influenced the Western civilisation, shaping most of the modern world
3.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
4.
Roman Catholic
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The Catholic Church, also known as the Roman Catholic Church or the Universal Church, is the largest Christian church, with more than 1.28 billion members worldwide. As one of the oldest religious institutions in the world, it has played a prominent role in the history, headed by the Bishop of Rome, known as the Pope, the churchs doctrines are summarised in the Nicene Creed and the Apostles Creed. Its central administration is located in Vatican City, enclaved within Rome, the Catholic Church is notable within Western Christianity for its sacred tradition and seven sacraments. It teaches that it is the one church founded by Jesus Christ, that its bishops are the successors of Christs apostles. The Catholic Church maintains that the doctrine on faith and morals that it declares as definitive is infallible. The Latin Church, the Eastern Catholic Churches, as well as such as mendicant orders and enclosed monastic orders. Among the sacraments, the one is the Eucharist, celebrated liturgically in the Mass. The church teaches that through consecration by a priest the sacrificial bread and wine become the body, the Catholic Church practises closed communion, with only baptised members in a state of grace ordinarily permitted to receive the Eucharist. The Virgin Mary is venerated in the Catholic Church as Queen of Heaven and is honoured in numerous Marian devotions. The Catholic Church has influenced Western philosophy, science, art and culture, Catholic spiritual teaching includes spreading the Gospel while Catholic social teaching emphasises support for the sick, the poor and the afflicted through the corporal and spiritual works of mercy. The Catholic Church is the largest non-government provider of education and medical services in the world, from the late 20th century, the Catholic Church has been criticised for its doctrines on sexuality, its refusal to ordain women and its handling of sexual abuse cases. Catholic was first used to describe the church in the early 2nd century, the first known use of the phrase the catholic church occurred in the letter from Saint Ignatius of Antioch to the Smyrnaeans, written about 110 AD. In the Catechetical Discourses of Saint Cyril of Jerusalem, the name Catholic Church was used to distinguish it from other groups that call themselves the church. The use of the adjective Roman to describe the Church as governed especially by the Bishop of Rome became more widespread after the Fall of the Western Roman Empire and into the Early Middle Ages. Catholic Church is the name used in the Catechism of the Catholic Church. The Catholic Church follows an episcopal polity, led by bishops who have received the sacrament of Holy Orders who are given formal jurisdictions of governance within the church. Ultimately leading the entire Catholic Church is the Bishop of Rome, commonly called the pope, in parallel to the diocesan structure are a variety of religious institutes that function autonomously, often subject only to the authority of the pope, though sometimes subject to the local bishop. Most religious institutes only have male or female members but some have both, additionally, lay members aid many liturgical functions during worship services
5.
Architect
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An architect is someone who plans, designs, and reviews the construction of buildings. Etymologically, architect derives from the Latin architectus, which derives from the Greek, practical, technical, and academic requirements for becoming an architect vary by jurisdiction. The terms architect and architecture are used in the disciplines of landscape architecture, naval architecture. In most jurisdictions, the professional and commercial uses of the terms architect, throughout ancient and medieval history, most architectural design and construction was carried out by artisans—such as stone masons and carpenters, rising to the role of master builder. Until modern times, there was no distinction between architect and engineer. In Europe, the architect and engineer were primarily geographical variations that referred to the same person. It is suggested that various developments in technology and mathematics allowed the development of the gentleman architect. Paper was not used in Europe for drawing until the 15th century, pencils were used more often for drawing by 1600. The availability of both allowed pre-construction drawings to be made by professionals, until the 18th-century, buildings continued to be designed and set out by craftsmen with the exception of high-status projects. In most developed countries, only qualified people with appropriate license, certification, or registration with a relevant body, such licensure usually requires an accredited university degree, successful completion of exams, and a training period. To practice architecture implies the ability to independently of supervision. In many places, independent, non-licensed individuals may perform design services outside the professional restrictions, such design houses, in the architectural profession, technical and environmental knowledge, design and construction management, and an understanding of business are as important as design. However, design is the force throughout the project and beyond. An architect accepts a commission from a client, the commission might involve preparing feasibility reports, building audits, the design of a building or of several buildings, structures, and the spaces among them. The architect participates in developing the requirements the client wants in the building, throughout the project, the architect co-ordinates a design team. Structural, mechanical, and electrical engineers and other specialists, are hired by the client or the architect, the architect hired by a client is responsible for creating a design concept that meets the requirements of that client and provides a facility suitable to the required use. In that, the architect must meet with and question the client to ascertain all the requirements, often the full brief is not entirely clear at the beginning, entailing a degree of risk in the design undertaking. The architect may make proposals to the client which may rework the terms of the brief
6.
Bonanno Pisano
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Bonanno Pisano, active in the 1170s and 1180s, was an Italian sculptor, mixing Byzantine and classical elements. Giorgio Vasari wrongly attributed the realization of the Leaning Tower of Pisa to him in his Vite, Pisano was born in Pisa and worked there most of his life. In the 1180s, he departed for Monreale, in Sicily, where he completed the doors to the cathedral before returning to Pisa, Pisano was buried at the foot of the leaning tower, where his sarcophagus was discovered in 1820. Between March 1179 and March 1180, he created the bronze Porta Reale of the cathedral of Pisa, from 1186 on, he constructed the San Ranieri La, at the right transept of the Duomo, depicting the main episodes of the Life of Christ. Constructed between 1185 and 1186, the gate is signed Bonanno civis pisanus. It depicts five scenes of the Old Testament at the bottom, starting with Adam and Eve, antonio Milone, Bonanno Pisano, in Artifex bonus, page 82-89, Roma-Bari 2004
7.
Architectural style
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An architectural style is characterized by the features that make a building or other structure notable or historically identifiable. A style may include such elements as form, method of construction, building materials, styles therefore emerge from the history of a society. They are documented in the subject of architectural history, at any time several styles may be fashionable, and when a style changes it usually does so gradually, as architects learn and adapt to new ideas. Styles often spread to places, so that the style at its source continues to develop in new ways while other countries follow with their own twist. A style may also spread through colonialism, either by foreign colonies learning from their home country, one example is the Spanish missions in California, brought by Spanish priests in the late 18th century and built in a unique style. After a style has gone out of fashion, revivals and re-interpretations may occur, for instance, classicism has been revived many times and found new life as neoclassicism. Each time it is revived, it is different, the Spanish mission style was revived 100 years later as the Mission Revival, and that soon evolved into the Spanish Colonial Revival. Vernacular architecture works slightly differently and is listed separately and it is the native method of construction used by local people, usually using labour-intensive methods and local materials, and usually for small structures such as rural cottages. It varies from region to region even within a country, as western society has developed, vernacular styles have mostly become outmoded due to new technology and to national building standards. Paul Jacobsthal and Josef Strzygowski are among the art historians who followed Riegl in proposing grand schemes tracing the transmission of elements of styles across great ranges in time and this type of art history is also known as formalism, or the study of forms or shapes in art. Terms originated to describe architectural periods were often applied to other areas of the visual arts, and then more widely still to music, literature. In architecture stylistic change often follows, and is possible by. While many architectural styles explore harmonious ideals, Mannerism wants to take style a step further and explores the aesthetics of hyperbole, Mannerism is notable for its intellectual sophistication as well as its artificial qualities. Mannerism favours compositional tension and instability rather than balance and clarity, the definition of Mannerism, and the phases within it, continues to be the subject of debate among art historians. An example of mannerist architecture is the Villa Farnese at Caprarola. in the country side outside of Rome. The proliferation of engravers during the 16th century spread Mannerist styles more quickly than any previous styles, a center of Mannerist design was Antwerp during its 16th-century boom. Through Antwerp, Renaissance and Mannerist styles were introduced in England, Germany. During the Mannerist Renaissance period, architects experimented with using architectural forms to emphasize solid, the Renaissance ideal of harmony gave way to freer and more imaginative rhythms
8.
Romanesque architecture
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Romanesque Architecture is an architectural style of medieval Europe characterized by semi-circular arches. There is no consensus for the date of the Romanesque style, with proposals ranging from the 6th to the late 10th century. It developed in the 12th century into the Gothic style, marked by pointed arches, examples of Romanesque architecture can be found across the continent, making it the first pan-European architectural style since Imperial Roman Architecture. The Romanesque style in England is traditionally referred to as Norman architecture, each building has clearly defined forms, frequently of very regular, symmetrical plan, the overall appearance is one of simplicity when compared with the Gothic buildings that were to follow. The style can be identified right across Europe, despite regional characteristics, Many castles were built during this period, but they are greatly outnumbered by churches. The most significant are the great churches, many of which are still standing, more or less complete. The largest groups of Romanesque survivors are in areas that were less prosperous in subsequent periods, including parts of southern France, northern Spain and rural Italy. According to the Oxford English Dictionary, the word Romanesque means descended from Roman and was first used in English to designate what are now called Romance languages, Romance language is not degenerated Latin language. Latin language is degenerated Romance language, Romanesque architecture is not debased Roman architecture. Roman architecture is debased Romanesque architecture, the first use in a published work is in William Gunns An Inquiry into the Origin and Influence of Gothic Architecture. The term is now used for the more restricted period from the late 10th to 12th centuries, Many castles exist, the foundations of which date from the Romanesque period. Most have been altered, and many are in ruins. By far the greatest number of surviving Romanesque buildings are churches, the scope of Romanesque architecture Romanesque architecture was the first distinctive style to spread across Europe since the Roman Empire. In the more northern countries Roman building styles and techniques had never been adopted except for official buildings, although the round arch continued in use, the engineering skills required to vault large spaces and build large domes were lost. There was a loss of continuity, particularly apparent in the decline of the formal vocabulary of the Classical Orders. In Rome several great Constantinian basilicas continued in use as an inspiration to later builders, the largest building is the church, the plan of which is distinctly Germanic, having an apse at both ends, an arrangement not generally seen elsewhere. Another feature of the church is its regular proportion, the plan of the crossing tower providing a module for the rest of the plan. These features can both be seen at the Proto-Romanesque St. Michaels Church, Hildesheim, 1001–1030, the style, sometimes called First Romanesque or Lombard Romanesque, is characterised by thick walls, lack of sculpture and the presence of rhythmic ornamental arches known as a Lombard band
9.
Building material
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Building material is any material which is used for construction purposes. Many naturally occurring substances, such as clay, rocks, sand, apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic. They provide the make-up of habitats and structures including homes and these trends tend to increase the initial and long term economic, ecological, energy, and social costs of building materials. The initial economic cost of building materials is the purchase price and this is often what governs decision making about what materials to use. Sometimes people take into consideration the energy savings or durability of the materials, for example, an asphalt shingle roof costs less than a metal roof to install, but the metal roof will last longer so the lifetime cost is less per year. Some materials may require more care than others, maintaining costs specific to some materials may also influence the final decision. Risks when considering lifetime cost of a material is if the building is damaged such as by fire or wind, the cost of materials should be taken into consideration to bear the risk to buy combustive materials to enlarge the lifetime. It is said that, if it must be done, it must be done well, pollution costs can be macro and micro. An example of the aspect of pollution is the off-gassing of the building materials in the building or indoor air pollution. Red List building materials are found to be harmful. Also the carbon footprint, the set of greenhouse gas emissions produced in the life of the material. A life-cycle analysis also includes the reuse, recycling, or disposal of construction waste, two concepts in building which account for the ecological economics of building materials are green building and sustainable development. Initial energy costs include the amount of energy consumed to produce, deliver, the long term energy cost is the economic, ecological, and social costs of continuing to produce and deliver energy to the building for its use, maintenance, and eventual removal. The initial embodied energy of a structure is the energy consumed to extract, manufacture, deliver, install, social costs are injury and health of the people producing and transporting the materials and potential health problems of the building occupants if there are problems with the building biology. Aspects of fair trade and labor rights are social costs of building material manufacturing. These were variously named wikiups, lean-tos, and so forth, an extension on the brush building idea is the wattle and daub process in which clay soils or dung, usually cow, are used to fill in and cover a woven brush structure. This gives the more thermal mass and strength. Wattle and daub is one of the oldest building techniques, many older timber frame buildings incorporate wattle and daub as non load bearing walls between the timber frames
10.
Marble
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Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Geologists use the marble to refer to metamorphosed limestone, however. Marble is commonly used for sculpture and as a building material and this stem is also the basis for the English word marmoreal, meaning marble-like. In Hungarian it is called márvány, Marble is a rock resulting from metamorphism of sedimentary carbonate rocks, most commonly limestone or dolomite rock. Metamorphism causes variable recrystallization of the carbonate mineral grains. The resulting marble rock is composed of an interlocking mosaic of carbonate crystals. Primary sedimentary textures and structures of the carbonate rock have typically been modified or destroyed. Pure white marble is the result of metamorphism of a very pure limestone or dolomite protolith, green coloration is often due to serpentine resulting from originally magnesium-rich limestone or dolostone with silica impurities. These various impurities have been mobilized and recrystallized by the intense pressure, examples of historically notable marble varieties and locations, White marble has been prized for its use in sculptures since classical times. This preference has to do with its softness, which made it easier to carve, relative isotropy and homogeneity, construction marble is a stone which is composed of calcite, dolomite or serpentine which is capable of taking a polish. More generally in construction, specifically the dimension stone trade, the marble is used for any crystalline calcitic rock useful as building stone. For example, Tennessee marble is really a dense granular fossiliferous gray to pink to maroon Ordovician limestone that geologists call the Holston Formation. Ashgabat, the city of Turkmenistan, was recorded in the 2013 Guinness Book of Records as having the worlds highest concentration of white marble buildings. According to the United States Geological Survey, U. S. domestic marble production in 2006 was 46,400 tons valued at about $18.1 million, compared to 72,300 tons valued at $18.9 million in 2005. Crushed marble production in 2006 was 11.8 million tons valued at $116 million, of which 6.5 million tons was finely ground calcium carbonate and the rest was construction aggregate. For comparison,2005 crushed marble production was 7.76 million tons valued at $58.7 million, of which 4.8 million tons was finely ground calcium carbonate, U. S. dimension marble demand is about 1.3 million tons. The DSAN World Demand for Marble Index has shown a growth of 12% annually for the 2000–2006 period, the largest dimension marble application is tile. In 1998, marble production was dominated by 4 countries that accounted for almost half of production of marble
11.
Stone
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Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids. For example, granite, a rock, is a combination of the minerals quartz, feldspar. The Earths outer solid layer, the lithosphere, is made of rock, rock has been used by mankind throughout history. The minerals and metals found in rocks have been essential to human civilization, three major groups of rocks are defined, igneous, sedimentary, and metamorphic. The scientific study of rocks is called petrology, which is a component of geology. At a granular level, rocks are composed of grains of minerals, the aggregate minerals forming the rock are held together by chemical bonds. The types and abundance of minerals in a rock are determined by the manner in which the rock was formed, many rocks contain silica, a compound of silicon and oxygen that forms 74. 3% of the Earths crust. This material forms crystals with other compounds in the rock, the proportion of silica in rocks and minerals is a major factor in determining their name and properties. Rocks are geologically classified according to such as mineral and chemical composition, permeability, the texture of the constituent particles. These physical properties are the end result of the processes that formed the rocks, over the course of time, rocks can transform from one type into another, as described by the geological model called the rock cycle. These events produce three general classes of rock, igneous, sedimentary, and metamorphic, the three classes of rocks are subdivided into many groups. However, there are no hard and fast boundaries between allied rocks, hence the definitions adopted in establishing rock nomenclature merely correspond to more or less arbitrary selected points in a continuously graduated series. Igneous rock forms through the cooling and solidification of magma or lava and this magma can be derived from partial melts of pre-existing rocks in either a planets mantle or crust. Typically, the melting of rocks is caused by one or more of three processes, an increase in temperature, a decrease in pressure, or a change in composition, igneous rocks are divided into two main categories, plutonic rock and volcanic. Plutonic or intrusive rocks result when magma cools and crystallizes slowly within the Earths crust, a common example of this type is granite. Volcanic or extrusive rocks result from magma reaching the surface either as lava or fragmental ejecta, the chemical abundance and the rate of cooling of magma typically forms a sequence known as Bowens reaction series. Most major igneous rocks are found along this scale, about 64. 7% of the Earths crust by volume consists of igneous rocks, making it the most plentiful category. Of these, 66% are basalts and gabbros, 16% are granite, only 0. 6% are syenites and 0. 3% peridotites and dunites
12.
World Heritage Site
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A World Heritage Site is a landmark which has been officially recognized by the United Nations, specifically by the United Nations Educational, Scientific and Cultural Organization. Sites are selected on the basis of having cultural, historical, scientific or some form of significance. UNESCO regards these sites as being important to the interests of humanity. The programme catalogues, names, and conserves sites of outstanding cultural or natural importance to the common culture, under certain conditions, listed sites can obtain funds from the World Heritage Fund. The program was founded with the Convention Concerning the Protection of the Worlds Cultural and Natural Heritage, since then,192 state parties have ratified the convention, making it one of the most adhered to international instruments. As of July 2016,1052 sites are listed,814 cultural,203 natural, in 1959, the governments of Egypt and Sudan requested UNESCO to assist their countries to protect and rescue the endangered monuments and sites. In 1960, the Director-General of UNESCO launched an appeal to the Member States for an International Campaign to Save the Monuments of Nubia, the campaign, which ended in 1980, was considered a success. The project cost $80 million, about $40 million of which was collected from 50 countries, the projects success led to other safeguarding campaigns, saving Venice and its lagoon in Italy, the ruins of Mohenjo-daro in Pakistan, and the Borobodur Temple Compounds in Indonesia. UNESCO then initiated, with the International Council on Monuments and Sites, the United States initiated the idea of cultural conservation with nature conservation. The International Union for Conservation of Nature developed similar proposals in 1968, the Convention came into force on 17 December 1975. As of June 2016, it has been ratified by 192 states, including 188 UN member states plus the Cook Islands, the Holy See, Niue, a country must first list its significant cultural and natural sites, the result is called the Tentative List. A country may not nominate sites that have not been first included on the Tentative List, next, it can place sites selected from that list into a Nomination File. The Nomination File is evaluated by the International Council on Monuments and Sites and these bodies then make their recommendations to the World Heritage Committee. There are ten selection criteria – a site must meet at least one of them to be included on the list, up to 2004, there were six criteria for cultural heritage and four criteria for natural heritage. In 2005, this was modified so there is now only one set of ten criteria. Nominated sites must be of outstanding value and meet at least one of the ten criteria. Thus, the Geneva Convention treaty promulgates, Article 53, PROTECTION OF CULTURAL OBJECTS AND OF PLACES OF WORSHIP. There are 1,052 World Heritage Sites located in 165 States Party, of these,814 are cultural,203 are natural and 35 are mixed properties
13.
Piazza dei Miracoli
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Considered sacred by the Catholic Church, its owner, the square is dominated by four great religious edifices, the Pisa Cathedral, the Pisa Baptistry, the Campanile, and the Camposanto Monumentale. Partly paved and partly grassed, the Piazza dei Miracoli is also the site of the Ospedale Nuovo di Santo Spirito, which houses the Sinopias Museum, the square is sometimes called the Campo dei Miracoli. In 1987, the square was declared a UNESCO World Heritage Site. The heart of the Piazza del Duomo is the Duomo, the cathedral of the Archdiocese of Pisa. The cathedral has two aisles on either side of the nave, the transept consists of three aisles. The church is also as the Primatial, the archbishop of Pisa being a Primate since 1092. Its construction began in 1064 by the architect Buscheto and it set the model for the distinctive Pisan Romanesque style of architecture. The mosaics of the interior, as well as the pointed arches, the façade, of grey marble and white stone set with discs of coloured marble, was built by a master named Rainaldo, as indicated by an inscription above the middle door, Rainaldus prudens operator. The massive bronze doors were made in the workshops of Giambologna. The original central door was of bronze, made around 1180 by Bonanno Pisano, however, worshippers have never used the façade doors to enter, instead entering by way of the Porta di San Ranieri, in front of the Leaning Tower, built around 1180 by Bonanno Pisano. Above the doors are four rows of galleries with, on top, statues of Madonna with Child and, on the corners. Also in the façade is found the tomb of Buscheto and an inscription about the foundation of the Cathedral, the interior is faced with black and white marble and has a gilded ceiling and a frescoed dome. It was largely redecorated after a fire in 1595, which destroyed most of the Renaissance art works, fortunately, the impressive mosaic of Christ in Majesty, in the apse, flanked by the Blessed Virgin and St. John the Evangelist, survived the fire. It evokes the mosaics in the church of Monreale, Sicily, although it is said that the mosaic was done by Cimabue, only the head of St. John was done by the artist in 1302, his last work, since he died in Pisa the same year. The cupola, at the intersection of the nave and transept, was decorated by Riminaldi showing the assumption of the Blessed Virgin. Galileo is believed to have formulated his theory about the movement of a pendulum by watching the swinging of the lamp hanging from the ceiling of the nave. That lamp, smaller and simpler than the present one, is now kept in the Camposanto, the granite Corinthian columns between the nave and the aisle came originally from the mosque of Palermo, captured by the Pisans in 1063. The coffer ceiling of the nave was replaced after the fire of 1595, the present gold-decorated ceiling carries the coat of arms of the Medici
14.
Italian language
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By most measures, Italian, together with Sardinian, is the closest to Latin of the Romance languages. Italian is a language in Italy, Switzerland, San Marino, Vatican City. Italian is spoken by minorities in places such as France, Montenegro, Bosnia & Herzegovina, Crimea and Tunisia and by large expatriate communities in the Americas. Many speakers are native bilinguals of both standardized Italian and other regional languages, Italian is the fourth most studied language in the world. Italian is a major European language, being one of the languages of the Organisation for Security and Cooperation in Europe. It is the third most widely spoken first language in the European Union with 65 million native speakers, including Italian speakers in non-EU European countries and on other continents, the total number of speakers is around 85 million. Italian is the working language of the Holy See, serving as the lingua franca in the Roman Catholic hierarchy as well as the official language of the Sovereign Military Order of Malta. Italian is known as the language of music because of its use in musical terminology and its influence is also widespread in the arts and in the luxury goods market. Italian has been reported as the fourth or fifth most frequently taught foreign language in the world, Italian was adopted by the state after the Unification of Italy, having previously been a literary language based on Tuscan as spoken mostly by the upper class of Florentine society. Its development was influenced by other Italian languages and to some minor extent. Its vowels are the second-closest to Latin after Sardinian, unlike most other Romance languages, Italian retains Latins contrast between short and long consonants. As in most Romance languages, stress is distinctive, however, Italian as a language used in Italy and some surrounding regions has a longer history. What would come to be thought of as Italian was first formalized in the early 14th century through the works of Tuscan writer Dante Alighieri, written in his native Florentine. Dante is still credited with standardizing the Italian language, and thus the dialect of Florence became the basis for what would become the language of Italy. Italian was also one of the recognised languages in the Austro-Hungarian Empire. Italy has always had a dialect for each city, because the cities. Those dialects now have considerable variety, as Tuscan-derived Italian came to be used throughout Italy, features of local speech were naturally adopted, producing various versions of Regional Italian. Even in the case of Northern Italian languages, however, scholars are not to overstate the effects of outsiders on the natural indigenous developments of the languages
15.
Bell tower
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A bell tower is a tower that contains one or more bells, or that is designed to hold bells even if it has none. Church bell towers often incorporate clocks, and secular towers usually do, the Italian term campanile, deriving from the word campana meaning bell, is synonymous with bell tower, though in English usage Campanile tends to be used to refer to a free standing bell tower. A bell tower may also in some traditions be called a belfry, though this term may refer specifically to the substructure that houses the bells. The tallest free-standing bell tower in the world, approximately 110 m high, is the Joseph Chamberlain Memorial Clock Tower, located at the University of Birmingham, bells are rung from a tower to enable them to be heard at a distance. Church bells can signify the time for worshippers to go to church for a communal service and they are also rung on special occasions such as a wedding, or a funeral service. In some religious traditions they are used within the liturgy of the service to signify to people that a particular part of the service has been reached. A bell tower may have a bell, or a collection of bells which are tuned to a common scale. They may be stationary and chimed, rung randomly by swinging through a small arc and they may house a carillon or chimes, in which the bells are sounded by hammers connected via cables to a keyboard. These can be found in churches and secular buildings in Europe and America including college. A variety of electronic devices exist to simulate the sound of bells, some churches have an exconjuratory in the bell tower, a space where ceremonies were conducted to ward off weather-related calamities, like storms and excessive rain. The main bell tower of the Cathedral of Murcia has four, in addition, most Christian denominations ring church bells to call the faithful to worship, signalling the start of a mass or service of worship. The Christian tradition of the ringing of bells from a belltower is analogous to Islamic tradition of the adhan from a minaret. In AD400, Paulinus of Nola introduced church bells into the Christian Church, by the 11th century, bells housed in belltowers became commonplace. Historic bell towers exist throughout Europe, the Irish round towers are thought to have functioned in part as bell towers. Famous medieval European examples include Bruges, Ypres, Ghent, perhaps the most famous European free-standing bell tower, however, is the so-called Leaning Tower of Pisa, which is the campanile of the Duomo di Pisa in Pisa, Italy. In 1999 thirty-two Belgian belfries were added to the UNESCOs list of World Heritage Sites, in 2005 this list was extended with one Belgian and twenty-three Northern French belfries and is since known as Belfries of Belgium and France. In the Middle Ages, cities sometimes kept their important documents in belfries, not all are on a large scale, the bell tower of Katúň, in Slovakia, is typical of the many more modest structures that were once common in country areas. Archaic wooden bell towers survive adjoining churches in Lithuania and as well as in parts of Poland
16.
Cathedral
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A cathedral is a Christian church which contains the seat of a bishop, thus serving as the central church of a diocese, conference, or episcopate. The counterpart term for such a church in German is Dom from Latin domus ecclesiae or domus episcopalis, also Italian Duomo, Dutch Domkerk, when the church at which an archbishop or metropolitan presides is specifically intended, the term kathedrikos naos is used. In addition, both the Catholic Church and Orthodox churches have formed new dioceses within formerly Protestant lands for converts, consequently, it is not uncommon to find Christians in a single city being served by three or more cathedrals of differing denominations. In the Catholic tradition, the term cathedral correctly applies only to a church houses the seat of the bishop of a diocese. The abbey church of a territorial abbacy serves the same function, the Catholic Church also uses the following terms. A pro-cathedral is a parish or other church used temporarily as a cathedral, usually while the cathedral of a diocese is under construction, renovation and this designation applies only as long as the temporary use continues. A co-cathedral is a cathedral in a diocese that has two sees. A proto-cathedral is the cathedral of a transferred see. The cathedral church of a bishop is called the metropolitan cathedral. The term cathedral actually carries no implication as to the size or ornateness of the building, nevertheless, most cathedrals are particularly impressive edifices. The building is now under renovation and restoration for solemn dedication under the title Christ Cathedral in 2018, in the ancient world the chair, on a raised dais, was the distinctive mark of a teacher or rhetor and thus symbolises the bishops role as teacher. A raised throne within a hall was also definitive for a Late Antique presiding magistrate. The history of cathedrals starts in the year 313, when the emperor Constantine the Great personally adopted Christianity, in the third century, the phrase ascending the platform, ad pulpitum venire, becomes the standard term for Christian ordination. During the siege of Dura Europos in 256, a complete Christian house church, or domus ecclesiae was entombed in a bank, surviving when excavated. Otherwise the large room had no decoration or distinctive features at all, in 269, soon after Dura fell to the Persian army, a body of clerics assembled a charge sheet against the bishop of Antioch, Paul of Samosata, in the form of an open letter. Characteristically a Roman magistrate presided from a throne in a large, richly decorated and aisled rectangular hall called a basilica. The earliest of these new basilican cathedrals of which remains are still visible is below the Cathedral of Aquileia on the northern tip of the Adriatic sea. The three halls create a courtyard, in which was originally located a separate baptistery
17.
Pisa Cathedral
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Pisa Cathedral is a medieval Roman Catholic cathedral dedicated to the Assumption of the Virgin Mary, in the Piazza dei Miracoli in Pisa, Italy. It is an example of Romanesque architecture, in particular the style known as Pisan Romanesque. It is the seat of the Archbishop of Pisa, construction on the cathedral began in 1063 by the architect Buscheto, and expenses were paid using the spoils received fighting against the Muslims in Sicily in 1063. It includes various elements, classical, Lombard-Emilian, Byzantine. Marks Basilica began its reconstruction in Venice, evidence of a rivalry between the two maritime republics to see which could create the most beautiful and luxurious place of worship. The church was erected outside Pisas high middle age-era walls, to show that Pisa that was so powerful, it had no fear of being attacked. The chosen area had already used in the Lombard era as a necropolis and at the beginning of the 11th century a church had been erected here, but never finished. Buschetos grand new church, was initially called Santa Maria Maggiore until it was officially named Santa Maria Assunta, in 1092 the cathedral was declared a primatial church, archbishop Dagobert having been given the title of Primate by Pope Urban II. The cathedral was consecrated in 1118 by Pope Gelasius II, who belonged to the Caetani family which was both in Pisa and in Rome. The exact date of the work is unclear, according to some the work was done right after the death of Buscheto about the year 1100, though others say it was done closer to 1140. In any case, work was finished in 1180, as documented by the date written on the bronze knockers made by Bonanno Pisano found on the main door, the structures present appearance is the result of numerous restoration campaigns that were carried out in different eras. In the early 18th century began the redecoration of the walls of the cathedral with large paintings. These works were made by the artists of the era. The presence of two raised matronea in the nave, with their solid, monolithic columns of granite, is a sign of Byzantine influence. Buscheto welcomed Islamic and Armenian influence, in the early 19th century the original sculpture, which can now be seen in the cathedral museum, was removed from the roof and replaced with a copy. The high arches show Islamic and southern Italian influence, the blind arches with lozenge shapes recall similar structures in Armenia. The facade of grey and white marble, decorated with colored marble inserts, was built by Master Rainaldo, above the three doorways are four levels of loggia divided by cornices with marble intarsia, behind which open single, double, and triple windows. The heavy bronze doors of the facade were made by different Florentine artists in the 17th century
18.
Pisa Baptistery
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The Pisa Baptistery of St. John is a Roman Catholic ecclesiastical building in Pisa, Italy. The baptistery was designed by Diotisalvi, whose signature can be read on two pillars inside the building, with the date 1153, the largest baptistery in Italy, it is 54.86 m high, with a diameter of 34.13 m. The Baptistery is constructed of marble, as is common in Italian architecture, the portal, facing the facade of the cathedral, is flanked by two classical columns, while the inner jambs are executed in Byzantine style. The lintel is divided in two tiers, the lower one depicts several episodes in the life of St. John the Baptist, while the upper one shows Christ between the Madonna and St John the Baptist, flanked by angels and the evangelists. The interior is overwhelming and lacks decoration, the octagonal font at the centre dates from 1246 and was made by Guido Bigarelli da Como. The bronze sculpture of St. John the Baptist at the centre of the font, is a work by Italo Griselli, the pulpit was sculpted between 1255-1260 by Nicola Pisano, father of Giovanni, the artist who produced the pulpit in the Duomo. Constructed on the unstable sand as the tower and cathedral. Originally the shape of the Baptistery, according to the project by Diotisalvi, was different and it was perhaps similar to the church of Holy Sepulchre in Pisa, with its pyramidal roof. After the death of the architect, Nicola Pisano continued the work, also an external roof was added giving the shape of a cupola. As a side effect of the two roofs, the inner one and the domed external one, the interior is acoustically perfect. History of Medieval Arabic and Western European domes Rory Carroll, Pisa Baptistery is giant musical instrument, computers show
19.
Foundation (engineering)
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A foundation is the element of an architectural structure which connects it to the ground, and transfers loads from the structure to the ground. Foundations are generally considered either shallow or deep, foundation engineering is the application of soil mechanics and rock mechanics in the design of foundation elements of structures. Buildings and structures have a history of being built with wood in contact with the ground. Post in ground construction may technically have no foundation, timber pilings were used on soft or wet ground even below stone or masonry walls. In marine construction and bridge building a crisscross of timbers or steel beams in concrete is called grillage, perhaps the simplest foundation is the padstone, a single stone which both spreads the weight on the ground and raises the timber off the ground. Staddle stones are a type of padstone. Dry stone and stones laid in mortar to build foundations are common in parts of the world. Dry laid stone foundations may have painted with mortar after construction. Sometimes the top, visible course of stone is hewn, quarried stones, besides using mortar, stones can also be put in a gabion. One disadvantage is that if using regular steel rebars, the gabion would last much less long than when using mortar, using weathering steel rebars could reduce this disadvantage somewhat. Rubble trench foundations are a shallow trench filled with rubble or stones and these foundations extend below the frost line and may have a drain pipe which helps groundwater drain away. They are suitable for soils with a capacity of more than 10 tonnes/m², shallow foundations, often called footings, are usually embedded about a metre or so into soil. One common type is the spread footing which consists of strips or pads of concrete which extend below the frost line and transfer the weight from walls and columns to the soil or bedrock. Another common type of foundation is the slab-on-grade foundation where the weight of the building is transferred to the soil through a concrete slab placed at the surface. A deep foundation is used to transfer the load of a structure down through the upper layer of topsoil to the stronger layer of subsoil below. There are different types of deep footings including impact driven piles, drilled shafts, caissons, helical piles, geo-piers, the naming conventions for different types of footings vary between different engineers. Historically, piles were wood, later steel, reinforced concrete, a large number of monopile foundations have been utilized in recent years for economically constructing fixed-bottom offshore wind farms in shallow-water subsea locations. For example, a wind farm off the coast of England went online in 2008 with over 100 turbines
20.
Tonne
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The SI symbol for the tonne is t, adopted at the same time as the unit itself in 1879. Its use is also official, for the metric ton, within the United States, having been adopted by the US National Institute of Standards and it is a symbol, not an abbreviation, and should not be followed by a period. Informal and non-approved symbols or abbreviations include T, mT, MT, in French and all English-speaking countries that are predominantly metric, tonne is the correct spelling. Before metrication in the UK the unit used for most purposes was the Imperial ton of 2,240 pounds avoirdupois, equivalent to 1,016 kg, differing by just 1. 6% from the tonne. Ton and tonne are both derived from a Germanic word in use in the North Sea area since the Middle Ages to designate a large cask. A full tun, standing about a high, could easily weigh a tonne. An English tun of wine weighs roughly a tonne,954 kg if full of water, in the United States, the unit was originally referred to using the French words millier or tonneau, but these terms are now obsolete. The Imperial and US customary units comparable to the tonne are both spelled ton in English, though they differ in mass, one tonne is equivalent to, Metric/SI,1 megagram. Equal to 1000000 grams or 1000 kilograms, megagram, Mg, is the official SI unit. Mg is distinct from mg, milligram, pounds, Exactly 1000/0. 453 592 37 lb, or approximately 2204.622622 lb. US/Short tons, Exactly 1/0. 907 184 74 short tons, or approximately 1.102311311 ST. One short ton is exactly 0.90718474 t, imperial/Long tons, Exactly 1/1. 016 046 9088 long tons, or approximately 0.9842065276 LT. One long ton is exactly 1.0160469088 t, for multiples of the tonne, it is more usual to speak of thousands or millions of tonnes. Kilotonne, megatonne, and gigatonne are more used for the energy of nuclear explosions and other events. When used in context, there is little need to distinguish between metric and other tons, and the unit is spelt either as ton or tonne with the relevant prefix attached. *The equivalent units columns use the short scale large-number naming system used in most English-language countries. †Values in the equivalent short and long tons columns are rounded to five significant figures, ǂThough non-standard, the symbol kt is also sometimes used for knot, a unit of speed for sea-going vessels, and should not be confused with kilotonne. A metric ton unit can mean 10 kilograms within metal trading and it traditionally referred to a metric ton of ore containing 1% of metal. In the case of uranium, the acronym MTU is sometimes considered to be metric ton of uranium, in the petroleum industry the tonne of oil equivalent is a unit of energy, the amount of energy released by burning one tonne of crude oil, approximately 42 GJ
21.
Bronze
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These additions produce a range of alloys that may be harder than copper alone, or have other useful properties, such as stiffness, ductility, or machinability. The archeological period where bronze was the hardest metal in use is known as the Bronze Age. In the ancient Near East this began with the rise of Sumer in the 4th millennium BC, with India and China starting to use bronze around the same time, everywhere it gradually spread across regions. The Bronze Age was followed by the Iron Age starting from about 1300 BC and reaching most of Eurasia by about 500 BC, the discovery of bronze enabled people to create metal objects which were harder and more durable than previously possible. Bronze tools, weapons, armor, and building such as decorative tiles were harder and more durable than their stone. It was only later that tin was used, becoming the major ingredient of bronze in the late 3rd millennium BC. Tin bronze was superior to arsenic bronze in that the process could be more easily controlled. Also, unlike arsenic, metallic tin and fumes from tin refining are not toxic, the earliest tin-alloy bronze dates to 4500 BCE in a Vinča culture site in Pločnik. Other early examples date to the late 4th millennium BC in Africa, Susa and some ancient sites in China, Luristan, ores of copper and the far rarer tin are not often found together, so serious bronze work has always involved trade. Tin sources and trade in ancient times had a influence on the development of cultures. In Europe, a source of tin was the British deposits of ore in Cornwall. In many parts of the world, large hoards of bronze artefacts are found, suggesting that bronze also represented a store of value, in Europe, large hoards of bronze tools, typically socketed axes, are found, which mostly show no signs of wear. With Chinese ritual bronzes, which are documented in the inscriptions they carry and from other sources and these were made in enormous quantities for elite burials, and also used by the living for ritual offerings. Pure iron is soft, and the process of beating and folding sponge iron to wrought iron removes from the metal carbon. Careful control of the alloying and tempering eventually allowed for wrought iron with properties comparable to modern steel, Bronze was still used during the Iron Age, and has continued in use for many purposes to the modern day. Among other advantages, it does not rust, the weaker wrought iron was found to be sufficiently strong for many uses. Archaeologists suspect that a disruption of the tin trade precipitated the transition. The population migrations around 1200–1100 BC reduced the shipping of tin around the Mediterranean, limiting supplies, there are many different bronze alloys, but typically modern bronze is 88% copper and 12% tin
22.
Monreale
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Monreale is a town and comune in the province of Palermo, in Sicily, Italy. It sits on the slope of Monte Caputo, overlooking the fertile valley called La Conca doro, famed for its orange, olive and almond trees. The town, which has a population of approximately 30,000, is about 15 kilometres inland of Palermo, after the occupation of Palermo by the Arabs, the Bishop of Palermo was forced to move his seat outside the capital. The role of the new cathedral was assigned to a modest little church, Aghia Kiriaki, after the Norman conquest in 1072, Christians got back the old city cathedral. Probably the villages role as temporary ecclesiastical centre played a part in King William IIs decision to build his famous cathedral. Monreale was for a time a mere village, and started its expansion when the Norman Kings of Sicily chose the area as their hunting resort. Under King William II, the monastery of Benedictines coming from Cava de Tirreni. It is noteworthy that the new construction had also an important defensive function, Monreale was the seat of the metropolitan archbishop of Sicily, which from then on exerted a significant influence over Sicily. In the nineteenth century, underage marriages, or those performed without the blessing of the parents, were known as the marriages of Monreale. The cathedral of Monreale is one of the greatest extant examples of Norman architecture anywhere. It was begun in 1174 by William II, and in 1182 the church, dedicated to the Nativity of the Virgin Mary, was, by a bull of Pope Lucius III, the church is a national monument of Italy and one of the most important attractions of Sicily. This has been rebuilt, and but little now remains except ruins of some of the towers, a great part of the monks dormitory and frater. The latter is preserved, and is one of the finest Italian cloisters both for size and beauty of detail now extant. The marble capitals are carved with foliage, biblical scenes and allegories. At one angle, a square pillared projection contains the fountain or monks lavatorium. The churchs plan is a mixture of Eastern Rite and Roman Catholic arrangement and it is, in fact, like two quite different churches put together endwise. The basilican nave is wide, with narrow aisles, monolithic columns of grey oriental granite on each side support eight pointed arches much stilted. The capitals of these are also of the classical period, there is no triforium, but a high clerestory with wide two-light windows, with simple tracery like those in the nave-aisles and throughout the church, which give sufficient light
23.
Diotisalvi
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Diotisalvi, also Deotisalvi or Deustesalvet, was an architect from Pisa, Italy, active in the 12th century in Pisa. In fact, he constructed only the first part, the ground floor, the building was continued after his death by Nicola Pisano, a century after its foundation, and then completed by Giovanni Pisano. They changed many things in the form of the building, that was intended to be simpler with no gothic cusps and no dome, just a small. This was connected to the fact that he wanted to resemble the Anastasis in the basilica of the Holy Sepulchre in Jerusalem, maybe Diotisalvi wanted to replicate his previous work of the church of Holy Sepulchre in Pisa,40 years before. The church of Holy Sepulchre, was built in the first part of 12th century, there are proofs that it existed in 1113. The church has a shape and a pyramidal roof. Inside the belltower, there is a sign where Deustesalvet claims to be the fabricator, there are many churches in Europe dedicated to the Holy Sepulchre in octagonal or circular shape. We can cite the one in Bologna, Italy, inside the complex of Saint Stephen, or the one in Cambridge, or the Temple Church in London and he was fabricator in 1113, and magister in 1153. That means he refined his art in school, maybe the construction works of the Cathedral. He did some works, but without signing them. The chapel of Saint Agatha, a chapel behind the church of Saint Paul a Ripa dArno. The small building was originally built in 1063 by the monks. The first certification of the existence of the chapel is in 1132 and it is in the usual octagonal shape, with a pyramidal roof. The bell tower of the church of St Nicholas and it has an octagonal shape, and a pyramidal roof, as all the other buildings by Diotisalvi. It was built in 1170, although there are no proofs, the bell-chamber instead is hexagonal with one window in every side. Inside there is a staircase, with a wall only on the external part. It was separated from the buildings in origin, and it is slightly tilting. Recent studies attribute by analogies also the famous Leaning Tower of Pisa to magister Diotisalvi, the shape, the construction, the affinity with the belltower of St. Nicholas all bring to the mind the work of Diotisalvi
24.
San Nicola, Pisa
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San Nicola is a church in Pisa, Tuscany, Italy. San Nicola is mentioned for the first time, together with the annexed convent, in 1297-1313 the Augustinians enlarged it, perhaps under design by Giovanni Pisano. In the 17th century the edifice was restored with the addition of altars, the façade features pilaster strips, blind arches and lozenges, and is decorated with 12th century intarsia. The interior houses the panels of Madonna with Child and of St, the octangular bell tower, the second most famous in the city after the Leaning Tower, most likely dates to 1170. There is no proof, but, as in the case of its more famous counterpart. Originally it was separated from the nearby buildings and it is also slightly tilting, the base is under the current street level. The lower part starts at the top of each side with blind arches including lozenges, the bell has instead a good plan, with a single mullioned window on each side, and is surrounded by a gallery with small arches supported by columns. The cusp has a pyramidal shape, the polychrome effect was obtained by using stones from different locations. Page on the tower at Pisas comune website
25.
Baptistery
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In Christian architecture the baptistery or baptistry is the separate centrally planned structure surrounding the baptismal font. The baptistery may be incorporated within the body of a church or cathedral, in the early Church, the catechumens were instructed and the sacrament of baptism was administered in the baptistery. The sacramental importance and sometimes architectural splendor of the baptistery reflect the importance of baptism to Christians. The octagonal plan of the Lateran Baptistery, the first structure built as a baptistery, provided a widely followed model. In a narthex or anteroom the catechumens were instructed and made their confession of faith before baptism, the main interior space centered upon the baptismal font, in which those to be baptized were immersed thrice. Three steps led down to the floor of the font, the iconography of frescos or mosaics on the walls were commonly of the scenes in the life of Saint John the Baptist. The font was at first always of stone, but latterly metals were often used, the Lateran baptisterys font was fed by a natural spring. When the site had been the dwelling of the Laterani, before Constantine presented it to Bishop Miltiades. It will be quickly apprehended that as the requirements for Christian baptisteries expanded, there are also examples of the transition from miraculous springs to baptisteries from Gregory of Tours and Maximus, bishop of Turin. Baptisteries belong to a period of the church when great numbers of adult catechumens were baptized, after the 9th century, with infant baptism increasingly the rule, few baptisteries were built. Some of the older baptisteries were very large, so large that we hear of councils, during the months when there were no baptisms the baptistery doors were sealed with the bishops seal, a method of controlling the orthodoxy of all baptism in the diocese. Some baptisteries were divided into two parts to separate the sexes, sometimes the church had two baptisteries, one for each sex, a fireplace was often provided to warm the neophytes after immersion. Though baptisteries were forbidden to be used as burial-places by the Council of Auxerre they were not uncommonly used as such, the Florentine Antipope John XXIII was buried in the Baptistery facing Florences Duomo with great ceremony and a tomb erected. Many of the archbishops of Canterbury were buried in the baptistery at Canterbury. Baptisteries, we find from the records of early councils, were first built, as soon as Christianity made such progress that baptism became the rule, and as soon as immersion gave place to sprinkling, the ancient baptisteries were no longer necessary. They are still in use, however, in Florence. The baptistery of the Lateran must be the earliest ecclesiastical building still in use, a large part of it remains as built by Constantine. Attached to one side, towards the Lateran basilica, is a porch with two noble porphyry columns and richly carved capitals, bases and entablatures
26.
Capital (architecture)
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In architecture the capital or chapiter forms the topmost member of a column. It mediates between the column and the load thrusting down upon it, broadening the area of the supporting surface. The capital, projecting on each side as it rises to support the abacus, joins the usually square abacus and the usually circular shaft of the column. The capital may be convex, as in the Doric order, concave, as in the bell of the Corinthian order, or scrolling out. These form the three types on which all capitals are based. The Composite order, established in the 16th century on a hint from the Arch of Titus, from the highly visible position it occupies in all colonnaded monumental buildings, the capital is often selected for ornamentation, and is often the clearest indicator of the architectural order. The treatment of its detail may be an indication of the buildings date, the decoration underneath the bracket capital comes from art and designs from the many cultures that the Persian Empire conquered and assimilated including Egypt, Babylon, and Lydia. But of course these decorations below the bracket capital serve no purpose and are simply there for show. The earliest Aegean capital is shown in the frescoes at Knossos in Crete, it was of the convex type. The Doric capital is the simplest of the five Classical orders, it consists of the abacus above an ovolo molding, the sloping side of the echinus becomes flatter in the later examples, and in the Colosseum at Rome forms a quarter round. In the Ionic capital, spirally coiled volutes are inserted between the abacus and the ovolo. In the Ionic capitals of the archaic Temple of Artemis at Ephesus the width of the abacus is twice that of its depth, a century later, in the temple on the Ilissus, the abacus has become square. It has been suggested that the foliage of the Greek Corinthian capital was based on the Acanthus spinosus, not all architectural foliage is as realistic as Isaac Wares however. The leaves are carved in two ranks or bands, like one leafy cup set within another. The various orders are discussed in Vitruvius books iii and iv, Vitruvius describes Roman practice in a practical fashion. He gives some tales about the invention of each of the Orders, the increasing adoption of composite capitals signalled a trend towards freer, more inventive capitals in Late Antiquity. The top of an anta is often decorated, usually with bands of floral motifs. The designs often respond to an order of columns, but usually with a different set of design principles, in order not to protude excessively from the wall surface, these structures tend to have a rather flat surface, forming brick-shaped capitals, called anta capitals
27.
Subsoil
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Subsoil is the layer of soil under the topsoil on the surface of the ground. Like topsoil it is composed of a mixture of small particles such as sand, silt and/or clay. Below the subsoil is the substratum, which can be residual bedrock, sediments, as it is lacking in dark humus, subsoil is usually paler in colour than the overlying topsoil. It may contain the deeper roots of plants, such as trees. Clay-based subsoil has been the source of material for adobe, cob, rammed earth, wattle and daub. Subsoil compaction by vehicles with high axle load—extent, persistence and crop response, chemical Factors Affecting Root Growth in Subsoil Horizons of Coastal Plain Soils. Soil Science Society of America Journal
28.
Republic of Pisa
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The Republic of Pisa was a de facto independent state centered on the Tuscan city of Pisa during the late 10th and 11th centuries. It rose to become a powerhouse, a commercial center whose merchants dominated Mediterranean and Italian trade for a century before being surpassed and superseded by the Republic of Genoa. The power of Pisa as a mighty maritime nation began to grow, during the High Middle Ages the city grew into a very important commercial and naval center and controlled a significant Mediterranean merchant fleet and navy. It expanded its influence through the sack of Reggio di Calabria in the south of Italy in 1005, Pisa was in continuous conflict with the Saracens, whose bases were in the Italian astersa, for control of the Mediterranean. In alliance with Genoa, Sardinia was captured in 1016 with the defeat of the Saracen leader Mujāhid al-‘Āmirī and this victory gave Pisa supremacy in the Tyrrhenian Sea. When the Pisans subsequently ousted the Genoese from Sardinia, a new conflict, between 1030 and 1035 Pisa went on to successfully defeat several rival towns in the Emirate of Sicily and conquer Carthage in North Africa. In 1051-1052 Admiral Jacopo Ciurini conquered Corsica, provoking more resentment from the Genoese. In 1063, the Pisans approached the Norman Roger I of Sicily, Roger declined due to other commitments. With no land support, the Pisan attack against Palermo failed, in 1060 Pisa engaged in its first battle against Genoa and the Pisan victory helped to consolidate its position in the Mediterranean. This was simply a confirmation of the present situation, because at the time the marquis of Tuscany had already excluded from power. Pisa sacked the Zirid city of Mahdia in 1088, four years later, Pisan and Genoese ships helped Alfonso VI of Castile force El Cid out of Valencia. In 1092 Pope Urban II awarded Pisa supremacy over Corsica and Sardinia, a Pisan fleet of 120 ships participated in the First Crusade and the Pisans were instrumental in the siege of Jerusalem in 1099. On their way to the Holy Land the Pisan ships did not miss the opportunity to sack several Byzantine islands, the Pisan crusaders were led by their archbishop, Dagobert, the future Latin Patriarch of Jerusalem. Pisa and the maritime republics took advantage of the crusade to establish trading posts and colonies in the eastern coastal regions of Syria, Lebanon. In particular the Pisans founded colonies in Antioch, Acre, Jaffa, Tripoli, Tyre, in all these cities the Pisans were granted privileges and immunity from taxation, but had to contribute to their defence in case of attack. In the 12th century the Pisan quarter in the part of Constantinople had grown to 1,000 people. For some years of that century Pisa was the most prominent merchant and military ally of the Byzantine Empire, Pisa, as an international power, was destroyed forever by the crushing defeat of its navy in the Battle of Meloria against Genoa in 1284. In this battle, most of the Pisan galleys were destroyed, in 1290, an assault by Genoese ships against the Porto Pisano sealed the fate of the independent Pisan state
29.
Republic of Genoa
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It began when Genoa became a self-governing commune within the Regnum Italicum, and ended when it was conquered by the French First Republic under Napoleon and replaced with the Ligurian Republic. Corsica was ceded to France in the Treaty of Versailles of 1768, before 1100, Genoa emerged as an independent city-state, one of a number of Italian city-states during this period. Nominally, the Holy Roman Emperor was overlord and the Bishop of Genoa was president of the city, however, actual power was wielded by a number of consuls annually elected by popular assembly. The Adorno, Campofregoso, and other merchant families all fought for power in this Republic, as the power of the consuls allowed each family faction to gain wealth. The Republic of Genoa extended over modern Liguria and Piedmont, Sardinia, Corsica, through Genoese participation on the Crusades, Genoese colonies were established in the Middle East, in the Aegean, in Sicily and Northern Africa. The collapse of the Crusader States was offset by Genoa’s alliance with the Byzantine Empire, as Venices relations with the Byzantine Empire were temporarily disrupted by the Fourth Crusade and its aftermath, Genoa was able to improve its position. Genoa took advantage of opportunity to expand into the Black Sea and Crimea. Internal feuds between the families, the Grimaldi and Fieschi, the Doria, Spinola, and others caused much disruption. However, this prosperity did not last, the Black Death was imported into Europe in 1347 from the Genoese trading post at Caffa in Crimea, on the Black Sea. Following the economic and population collapse, Genoa adopted the Venetian model of government, the wars with Venice continued, and the War of Chioggia -- where Genoa almost managed to decisively subdue Venice—ended with Venices recovery of dominance in the Adriatic. In 1390 Genoa initiated a crusade against the Barbary pirates with help from the French, though it has not been well-studied, the fifteenth century seems to have been a tumultuous time for Genoa. After a period of French domination from 1394–1409, Genoa came under rule by the Visconti of Milan, Genoa lost Sardinia to Aragon, Corsica to internal revolt and its Middle Eastern, Eastern European and Asia Minor colonies to the Turkish Ottoman Empire. Under the ensuing economic recovery, many aristocratic Genoese families, such as the Balbi, Doria, Grimaldi, Pallavicini, according to Felipe Fernandez-Armesto and others, the practices Genoa developed in the Mediterranean were crucial in the exploration and exploitation of the New World. At the time of Genoa’s peak in the 16th century, the city attracted many artists, including Rubens, Caravaggio and Van Dyck. The architect Galeazzo Alessi designed many of the city’s splendid palazzi, as did in the decades that followed by fifty years Bartolomeo Bianco, a number of Genoese Baroque and Rococo artists settled elsewhere and a number of local artists became prominent. At the time of its founding in the early 11th century the Republic of Genoa consisted of the city of Genoa, as the commerce of the city increased, so did the territory of the Republic. By 1015 all of Liguria fell under the Republic of Genoa, after the First Crusade in 1098 Genoa gained settlements in Syria. In 1261 the city of Smyrna in Asia Minor became Genoese territory, in 1255 Genoa established the colony of Caffa in Crimea
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Republic of Lucca
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The Republic of Lucca was a historic state of Italy, which lasted from 1160 to 1805 on the central Italian peninsula. Within the Imperial Kingdom of Italy, the city of Lucca had been the residence of the Margraves of Tuscany, a certain autonomy was granted by a 1084 diploma issued by Emperor Henry IV, while on his Italian campaign during the Investiture Controversy with Pope Gregory VII. After the death of Margravine Matilda of Tuscany in 1115, the city began to constitute itself an independent commune, for almost 500 years, Lucca remained as an independent republic. There were many minor provinces in the region between southern Liguria and northern Tuscany dominated by the Malaspina family, Tuscany in this time was a part of feudal Europe. The Divine Comedy by Dante includes many references to the feudal families who had huge jurisdictions with administrative. Dante spent some of his exile in Lucca, in 1273 and again in 1277 Lucca was ruled by a Guelph capitano del popolo named Luchetto Gattilusio. In 1314, internal discord allowed Uguccione della Faggiuola of Pisa to make himself lord of Lucca, Castruccio Castracani The Lucchesi expelled him two years later, and handed over the city to another condottiere Castruccio Castracani, under whose rule it became a leading state in central Italy. Lucca rivalled Florence until Castracanis death in 1328, on 22 and 23 September 1325, in the battle of Altopascio, Castracani defeated Florences Guelphs. For this he was nominated by Louis IV the Bavarian to become duke of Lucca, Castracanis tomb is in San Francesco in Lucca. His biography, by Machiavelli, is the authors third book on political rule. Occupied by the troops of Louis of Bavaria, the city was sold to a rich Genoese, Gherardino Spinola, then pawned to the Rossi of Parma, and by them it was ceded to Martino della Scala of Verona. Then sold to the Florentines, surrendered to the Pisans, and then liberated by the emperor Charles IV. In 1408, Lucca hosted the convocation intended to end the schism in the papacy, Lucca managed, at first as a democracy, and after 1628 as an oligarchy, to maintain its independence — alongside Venice and Genoa. It painted the word Libertas on its banners, until the French Revolution in 1789, Lucca was the third largest Italian city state with a republican constitution to remain independent over the centuries, as larger Venice and Genoa also did. French democracy The independent course of the Republic changed in February 1799, after the Second Coalition invasion, French Jacobins created a centralized republic, the State of Lucca, with a democratic constitution. The constitution granted the government to an Executive Directory, with a legislature composed of the Council of Juniors. The democracy did not last long, a new constitution for the State of Lucca was published in 1801, restoring the office of Consul of Justice as the president of the Executive branch, with a parliament called the Great Council. In 1805, the governance of Lucca was taken over by Napoleon and he put his favored sister Elisa Bonaparte Baciocchi in place to rule, his only female sibling to gain political power
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Florence
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Florence is the capital city of the Italian region of Tuscany and of the Metropolitan City of Florence. It is the most populous city in Tuscany, with 383,083 inhabitants, Florence was a centre of medieval European trade and finance and one of the wealthiest cities of the time. It is considered the birthplace of the Renaissance, and has called the Athens of the Middle Ages. A turbulent political history includes periods of rule by the powerful Medici family, from 1865 to 1871 the city was the capital of the recently established Kingdom of Italy. The Historic Centre of Florence attracts 13 million tourists each year and it was declared a World Heritage Site by UNESCO in 1982. The city is noted for its culture, Renaissance art and architecture, the city also contains numerous museums and art galleries, such as the Uffizi Gallery and the Palazzo Pitti, and still exerts an influence in the fields of art, culture and politics. Due to Florences artistic and architectural heritage, it has been ranked by Forbes as one of the most beautiful cities in the world, in 2008, the city had the 17th highest average income in Italy. Florence originated as a Roman city, and later, after a period as a flourishing trading and banking medieval commune. According to the Encyclopædia Britannica, it was politically, economically, and culturally one of the most important cities in Europe, the language spoken in the city during the 14th century was, and still is, accepted as the Italian language. Starting from the late Middle Ages, Florentine money—in the form of the gold florin—financed the development of all over Europe, from Britain to Bruges, to Lyon. Florentine bankers financed the English kings during the Hundred Years War and they similarly financed the papacy, including the construction of their provisional capital of Avignon and, after their return to Rome, the reconstruction and Renaissance embellishment of Rome. Florence was home to the Medici, one of European historys most important noble families, Lorenzo de Medici was considered a political and cultural mastermind of Italy in the late 15th century. Two members of the family were popes in the early 16th century, Leo X, catherine de Medici married king Henry II of France and, after his death in 1559, reigned as regent in France. Marie de Medici married Henry IV of France and gave birth to the future king Louis XIII, the Medici reigned as Grand Dukes of Tuscany, starting with Cosimo I de Medici in 1569 and ending with the death of Gian Gastone de Medici in 1737. The Etruscans initially formed in 200 BC the small settlement of Fiesole and it was built in the style of an army camp with the main streets, the cardo and the decumanus, intersecting at the present Piazza della Repubblica. Situated along the Via Cassia, the route between Rome and the north, and within the fertile valley of the Arno, the settlement quickly became an important commercial centre. Peace returned under Lombard rule in the 6th century, Florence was conquered by Charlemagne in 774 and became part of the Duchy of Tuscany, with Lucca as capital. The population began to again and commerce prospered
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Battle of Meloria (1284)
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The Battle of Meloria was fought near the islet of Meloria in the Ligurian Sea on 5 and 6 August 1284 between the fleets of the Republics of Genoa and Pisa as part of the Genoese-Pisan War. The victory of Genoa and the destruction of the Pisan fleet marked the decline of the Republic of Pisa, in the 13th century, the Republic of Genoa conquered numerous settlements in Crimea, where the Genoese colony of Caffa was established. The alliance with the restored Byzantine Empire increased the wealth and power of Genoa, the Byzantine Empire had granted most of free trading rights to Genoa. In 1282, Pisa tried to control of the commerce and administration of Corsica, when Sinucello. In August 1282, part of the Genoese fleet blockaded Pisan commerce near the River Arno, during 1283, both Genoa and Pisa made war preparations. Pisa gathered soldiers from Tuscany and appointed captains from its noble families, Genoa built 120 galleys, sixty of these belonged to the Republic and the remainder were rented to individuals. This fleet required at least 15,000 to 17,000 rowers, in early 1284, the Genoese fleet tried to conquer Porto Torres and Sassari in Sardinia. Part of the Genoese merchant fleet defeated a Pisan force while travelling to the Byzantine Empire, the Genoese fleet blocked Porto Pisano and attacked Pisan ships travelling in the Mediterranean Sea. A Genoese force of thirty ships led by Benedetto Zaccaria travelled to Porto Torres to support Genoese forces which were besieging Sassari, when the Genoese appeared off Meloria, the Pisans were lying in the Arno at the mouth of which lay Porto Pisano, the port of the city. The Pisan fleet represented the power of the city, and carried members of every family of mark. The Genoese, desiring to draw their enemy out to battle and to make the action decisive, according to Agostino Giustiniani, the first was composed of fifty-eight galleys, and eight panfili—a class of light galley of eastern origin named after the province of Pamphylia. Oberto Doria, the Genoese admiral, was stationed in the centre, to the right were the galleys of the Spinola family, among those of four of the eight companies into which Genoa was divided, Castello, Piazzalunga, Macagnana and San Lorenzo. To the left were the galleys of the Doria family and the companies Porta, Soziglia, Porta Nuova and it was near enough to strike in and decide the battle when the action had begun. The Pisans, commanded by the Podestà Morosini and his lieutenants Ugolino della Gherardesca and Andreotto Saraceno, the Pisan fleet advanced in line abreast to meet the first line of the Genoese, fighting according to the medieval custom of ramming and boarding. The victory was decided for Genoa by the squadron of Zaccaria and their fleet was nearly annihilated, the Podestà was captured and Ugolino fled with a few vessels. Pisa was also attacked by Florence and Lucca, and it could never recover from the disaster, two years later, Genoa took Porto Pisano, the citys access to the sea, and filled up the harbour. Pisa lost its role as a major Mediterranean naval power and a power of Tuscany, being overshadowed. Count Ugolino was afterwards starved to death several of his sons and grandsons
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Gothic architecture
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Gothic architecture is a style of architecture that flourished in Europe during the high and late medieval period. It evolved from Romanesque architecture and was succeeded by Renaissance architecture and its characteristics include the pointed arch, the ribbed vault and the flying buttress. Gothic architecture is most familiar as the architecture of many of the cathedrals, abbeys. It is also the architecture of many castles, palaces, town halls, guild halls, universities and to a less prominent extent, private dwellings, for this reason a study of Gothic architecture is largely a study of cathedrals and churches. A series of Gothic revivals began in mid-18th-century England, spread through 19th-century Europe and continued, largely for ecclesiastical and university structures, the term Gothic architecture originated as a pejorative description. Hence, François Rabelais, also of the 16th century, imagines an inscription over the door of his utopian Abbey of Thélème, Here enter no hypocrites, slipping in a slighting reference to Gotz and Ostrogotz. Authorities such as Christopher Wren lent their aid in deprecating the old medieval style, the Company disapproved of several of these new manners, which are defective and which belong for the most part to the Gothic. Gothic architecture is the architecture of the medieval period, characterised by use of the pointed arch. As an architectural style, Gothic developed primarily in ecclesiastical architecture, the greatest number of surviving Gothic buildings are churches. The Gothic style is most particularly associated with the cathedrals of Northern France. At the end of the 12th century, Europe was divided into a multitude of city states, norway came under the influence of England, while the other Scandinavian countries and Poland were influenced by trading contacts with the Hanseatic League. Angevin kings brought the Gothic tradition from France to Southern Italy, throughout Europe at this time there was a rapid growth in trade and an associated growth in towns. Germany and the Lowlands had large flourishing towns that grew in comparative peace, in trade and competition with other, or united for mutual weal. Civic building was of importance to these towns as a sign of wealth. England and France remained largely feudal and produced grand domestic architecture for their kings, dukes and bishops, the Catholic Church prevailed across Europe at this time, influencing not only faith but also wealth and power. Bishops were appointed by the lords and they often ruled as virtual princes over large estates. The early Medieval periods had seen a growth in monasticism, with several different orders being prevalent. Foremost were the Benedictines whose great abbey churches vastly outnumbered any others in France, a part of their influence was that towns developed around them and they became centers of culture, learning and commerce
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Solidus (coin)
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The solidus, nomisma, or bezant was originally a relatively pure gold coin issued in the Late Roman Empire. Under Constantine, who introduced it on a scale, it had a weight of about 4.5 grams. The Byzantine solidus also inspired the originally slightly less pure Arabian dinar, in late Antiquity and the Middle Ages, the solidus also functioned as a unit of weight equal to 1/72 of a pound. The solidus was introduced by Diocletian in AD301 as a replacement of the aureus, composed of solid gold. His minting was on a scale, however, and the coin only entered widespread circulation under Constantine I after AD312. Constantines solidus was struck at a rate of 72 to a Roman pound of gold, each coin weighed 24 Greco-Roman carats. By this time, the solidus was worth 275,000 increasingly debased denarii, with the exception of the early issues of Constantine the Great and the odd usurpers the Solidus today is a much more affordable Gold Roman Coin to collect compared to the Older Aureus. Especially those of Valens Honorius and later Byzantine issues, the solidus was maintained essentially unaltered in weight, dimensions and purity until the 10th century. During the 6th and 7th centuries lightweight solidi of 20,22 or 23 siliquae were struck along with the weight issues. Many of these coins have been found in Europe, Russia and Georgia. The lightweight solidi were distinguished by different markings on the coin, usually in the exergue for the 20 and 22 siliquae coins and by stars in the field for the 23 siliquae coins. In theory the solidus was struck from pure gold, but because of the limits of refining techniques, in the Greek-speaking world during the Roman period, and then in the Byzantine economy, the solidus was known as the νόμισμα nomisma. Initially it was difficult to distinguish the two coins, as they had the design, dimensions and purity, and there were no marks of value to distinguish the denominations. The only difference was the weight, the tetarteron nomisma was a lighter coin, about 4.05 grams, but the histamenon nomisma maintained the traditional weight of 4.5 grams. To eliminate confusion between the two, from the reign of Basil II the solidus was struck as a coin with a larger diameter. From the middle of the 11th century the larger diameter histamenon nomisma was struck on a concave flan, former money changer Michael IV the Paphlagonian assumed the throne of Byzantium in 1034 and began the slow process of debasing both the tetarteron nomisma and the histamenon nomisma. Alexius reformed the coinage in 1092 and eliminated the solidus altogether, in its place he introduced a new gold coin called the hyperpyron nomisma at about 20. 5k fine. The weight, dimensions and purity of the hyperpyron nomisma remained stable until the fall of Constantinople to the Crusaders in 1204, after that time the exiled Empire of Nicea continued to strike a debased hyperpyron nomisma
35.
Giorgio Vasari
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Vasari was born in Arezzo, Tuscany. Recommended at an age by his cousin Luca Signorelli, he became a pupil of Guglielmo da Marsiglia. He was befriended by Michelangelo whose painting style would influence his own, in 1529, he visited Rome where he studied the works of Raphael and other artists of the Roman High Renaissance. Vasaris own Mannerist paintings were admired in his lifetime than afterwards. In 1547 he completed the hall of the chancery in Palazzo della Cancelleria in Rome with frescoes that received the name Sala dei Cento Giorni and he was consistently employed by members of the Medici family in Florence and Rome, and worked in Naples, Arezzo and other places. He also helped to organize the decoration of the Studiolo, now reassembled in the Palazzo Vecchio, aside from his career as a painter, Vasari was also successful as an architect. In Florence, Vasari also built the long passage, now called Vasari Corridor, the enclosed corridor passes alongside the River Arno on an arcade, crosses the Ponte Vecchio and winds around the exterior of several buildings. He also renovated the medieval churches of Santa Maria Novella and Santa Croce, at both he removed the original rood screen and loft, and remodelled the retro-choirs in the Mannerist taste of his time. In Santa Croce, he was responsible for the painting of The Adoration of the Magi which was commissioned by Pope Pius V in 1566 and it was recently restored, before being put on exhibition in 2011 in Rome and in Naples. Eventually it is planned to return it to the church of Santa Croce in Bosco Marengo, in 1562 Vasari built the octagonal dome on the Basilica of Our Lady of Humility in Pistoia, an important example of high Renaissance architecture. In Rome, Vasari worked with Giacomo Barozzi da Vignola and Bartolomeo Ammanati at Pope Julius IIIs Villa Giulia, the Lives also included a novel treatise on the technical methods employed in the arts. The book was rewritten and enlarged in 1568, with the addition of woodcut portraits of artists. The work has a consistent and notorious bias in favour of Florentines, and tends to attribute to them all the developments in Renaissance art – for example, Venetian art in particular, is systematically ignored in the first edition. Between the first and second editions, Vasari visited Venice and while the edition gave more attention to Venetian art. Vasaris biographies are interspersed with amusing gossip, with a few exceptions, however, Vasaris aesthetic judgement was acute and unbiased. He did not research archives for exact dates, as art historians do, and naturally his biographies are most dependable for the painters of his own generation. Modern criticism – with new materials opened up by research – has corrected many of his traditional dates and attributions. Vasari includes a sketch of his own biography at the end of the Lives, according to the historian Richard Goldthwaite, Vasari was one of the earliest authors to use the term competition in its economic sense
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Giovanni Pisano
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Giovanni Pisano was an Italian sculptor, painter and architect, who worked in the cities of Pisa, Siena and Pistoia. He is best known for his sculpture shows the influence of both the French Gothic and the Ancient Roman art. Henry Moore, referring to his statues for the facade of Siena Cathedral, Giovanni Pisano was the son of the famous sculptor Nicola Pisano. He received his training in the workshop of his father and in 1265–1268 he worked with his father on the pulpit in Siena Cathedral and his next major work with his father was the fountain Fontana Maggiore in Perugia. Nicola Pisano is thought to have died either around 1278 or in 1284 when Giovanni took up residence in Siena and these first works were made in Nicolas style and it is difficult to separate the contributions of the two artists. However the Madonna with Child can be attributed with certainty to Giovanni, giovannis next work was at Pisa Cathedral, sculpting the statues in the two rows of traceried gables at the exterior of the Baptistry. The vivacity of these statues is a new confirmation that he had left the style of his father behind. Between 1287 and 1296 he was appointed architect of Siena Cathedral. The architectural design and elegant sculptures for the facade of the cathedral in Siena show his tendencies to blend Gothic art with reminders of Roman art, the work was continued after his death, with still greater Gothic elaboration, by Memmo di Filippuccio. In 1296 he returned to Pisa to begin work on the Church of San Giovanni, in 1301 he continued his work on the Pulpit of Sant Andrea, Pistoia which he had already started in 1297. The pulpit has five reliefs, the Annunciation and Nativity, the Adoration, the Dream of the Magi and the Angel warning Joseph, the Massacre of the Innocents, the Crucifixion, and the Last Judgement. Giovannis work between 1302 and 1310 at the new pulpit for the Cathedral of Pisa shows his preference for animation in his characters. This pulpit with its dramatic scenes has become his masterwork and it shows nine scenes from the New Testament, carved in white marble with a chiaroscuro effect. It contains even a bold, naturalistic depiction of a naked Hercules and his figure Prudence in the pulpit may have been an inspiration for the Eve in the painting The Expulsion from the Garden of Eden by Masaccio. After the fire of 1595 it was packed away during the redecoration and was not rediscovered and re-erected until 1926, the church of San Nicola in Pisa was enlarged between 1297 and 1313 by the Augustinians, perhaps by the design of Giovanni Pisano. He was also responsible of the façade of San Paolo a Ripa dArno and his last major work dates probably from 1313 when he made a monument in memory of Margaret of Brabant at the request of her husband emperor Henry VII. One of his pupils was Giovanni di Balduccio, who became a famous sculptor. He also had an influence on the painter Pietro Lorenzetti, giorgio Vasari included a biography of Pisano in his book Le vite dei più eccellenti pittori, scultori, e architetti The asteroid 7313 Pisano was named to honour Nicola and Giovanni Pisano
37.
Galileo Galilei
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Galileo Galilei was an Italian polymath, astronomer, physicist, engineer, philosopher, and mathematician. He played a role in the scientific revolution of the seventeenth century. Galileo also worked in applied science and technology, inventing an improved military compass, Galileos championing of heliocentrism and Copernicanism was controversial during his lifetime, when most subscribed to either geocentrism or the Tychonic system. He met with opposition from astronomers, who doubted heliocentrism because of the absence of a stellar parallax. He was tried by the Inquisition, found vehemently suspect of heresy and he spent the rest of his life under house arrest. He has been called the father of observational astronomy, the father of modern physics, the father of scientific method, and the father of science. Galileo was born in Pisa, Italy, on 15 February 1564, the first of six children of Vincenzo Galilei, a famous lutenist, composer, and music theorist, and Giulia, three of Galileos five siblings survived infancy. The youngest, Michelangelo, also became a noted lutenist and composer although he contributed to financial burdens during Galileos young adulthood, Michelangelo was unable to contribute his fair share of their fathers promised dowries to their brothers-in-law, who would later attempt to seek legal remedies for payments due. Michelangelo would also occasionally have to borrow funds from Galileo to support his musical endeavours and these financial burdens may have contributed to Galileos early fire to develop inventions that would bring him additional income. When Galileo Galilei was eight, his family moved to Florence and he then was educated in the Vallombrosa Abbey, about 30 km southeast of Florence. Galileo Bonaiuti was buried in the church, the Basilica of Santa Croce in Florence. It was common for mid-sixteenth century Tuscan families to name the eldest son after the parents surname, hence, Galileo Galilei was not necessarily named after his ancestor Galileo Bonaiuti. The Italian male given name Galileo derives from the Latin Galilaeus, meaning of Galilee, the biblical roots of Galileos name and surname were to become the subject of a famous pun. In 1614, during the Galileo affair, one of Galileos opponents, in it he made a point of quoting Acts 1,11, Ye men of Galilee, why stand ye gazing up into heaven. Despite being a genuinely pious Roman Catholic, Galileo fathered three children out of wedlock with Marina Gamba and they had two daughters, Virginia and Livia, and a son, Vincenzo. Their only worthy alternative was the religious life, both girls were accepted by the convent of San Matteo in Arcetri and remained there for the rest of their lives. Virginia took the name Maria Celeste upon entering the convent and she died on 2 April 1634, and is buried with Galileo at the Basilica of Santa Croce, Florence. Livia took the name Sister Arcangela and was ill for most of her life, Vincenzo was later legitimised as the legal heir of Galileo and married Sestilia Bocchineri
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Galileo's Leaning Tower of Pisa experiment
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Via this experiment, Galileo supposedly discovered that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotles theory of gravity. At the time when Viviani asserts that the experiment took place and he had, however, formulated an earlier version which predicted that bodies of the same material falling through the same medium would fall at the same speed. This was contrary to what Aristotle had taught, that objects fall faster than lighter ones. An exception is Drake, who argues that it took place, more or less as Viviani described it and this proves that Aristotle is wrong. Galileo arrived at his hypothesis by a thought experiment outlined in his book On Motion. Imagine two objects, one light and one heavier than the one, are connected to each other by a string. Drop this system of objects from the top of a tower, if we assume heavier objects do indeed fall faster than lighter ones, the string will soon pull taut as the lighter object retards the fall of the heavier object. But the system considered as a whole is heavier than the heavy object alone and this contradiction leads one to conclude the assumption is false. Terminal velocity Nordtvedt effect Newtons second law Galileo and the Leaning Tower of Pisa The Hammer-Feather Drop in the world’s biggest vacuum chamber
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Mass
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In physics, mass is a property of a physical body. It is the measure of a resistance to acceleration when a net force is applied. It also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is the kilogram, Mass is not the same as weight, even though mass is often determined by measuring the objects weight using a spring scale, rather than comparing it directly with known masses. An object on the Moon would weigh less than it does on Earth because of the lower gravity and this is because weight is a force, while mass is the property that determines the strength of this force. In Newtonian physics, mass can be generalized as the amount of matter in an object, however, at very high speeds, special relativity postulates that energy is an additional source of mass. Thus, any body having mass has an equivalent amount of energy. In addition, matter is a defined term in science. There are several distinct phenomena which can be used to measure mass, active gravitational mass measures the gravitational force exerted by an object. Passive gravitational mass measures the force exerted on an object in a known gravitational field. The mass of an object determines its acceleration in the presence of an applied force, according to Newtons second law of motion, if a body of fixed mass m is subjected to a single force F, its acceleration a is given by F/m. A bodys mass also determines the degree to which it generates or is affected by a gravitational field and this is sometimes referred to as gravitational mass. The standard International System of Units unit of mass is the kilogram, the kilogram is 1000 grams, first defined in 1795 as one cubic decimeter of water at the melting point of ice. Then in 1889, the kilogram was redefined as the mass of the prototype kilogram. As of January 2013, there are proposals for redefining the kilogram yet again. In this context, the mass has units of eV/c2, the electronvolt and its multiples, such as the MeV, are commonly used in particle physics. The atomic mass unit is 1/12 of the mass of a carbon-12 atom, the atomic mass unit is convenient for expressing the masses of atoms and molecules. Outside the SI system, other units of mass include, the slug is an Imperial unit of mass, the pound is a unit of both mass and force, used mainly in the United States
40.
Speed
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In everyday use and in kinematics, the speed of an object is the magnitude of its velocity, it is thus a scalar quantity. Speed has the dimensions of distance divided by time, the SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used, the fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in a vacuum c =299792458 metres per second. Matter cannot quite reach the speed of light, as this would require an amount of energy. In relativity physics, the concept of rapidity replaces the classical idea of speed, italian physicist Galileo Galilei is usually credited with being the first to measure speed by considering the distance covered and the time it takes. Galileo defined speed as the distance covered per unit of time, in equation form, this is v = d t, where v is speed, d is distance, and t is time. A cyclist who covers 30 metres in a time of 2 seconds, objects in motion often have variations in speed. If s is the length of the path travelled until time t, in the special case where the velocity is constant, this can be simplified to v = s / t. The average speed over a time interval is the total distance travelled divided by the time duration. Speed at some instant, or assumed constant during a short period of time, is called instantaneous speed. By looking at a speedometer, one can read the speed of a car at any instant. A car travelling at 50 km/h generally goes for less than one hour at a constant speed, if the vehicle continued at that speed for half an hour, it would cover half that distance. If it continued for one minute, it would cover about 833 m. Different from instantaneous speed, average speed is defined as the distance covered divided by the time interval. For example, if a distance of 80 kilometres is driven in 1 hour, likewise, if 320 kilometres are travelled in 4 hours, the average speed is also 80 kilometres per hour. When a distance in kilometres is divided by a time in hours, average speed does not describe the speed variations that may have taken place during shorter time intervals, and so average speed is often quite different from a value of instantaneous speed. If the average speed and the time of travel are known, using this equation for an average speed of 80 kilometres per hour on a 4-hour trip, the distance covered is found to be 320 kilometres. Linear speed is the distance travelled per unit of time, while speed is the linear speed of something moving along a circular path
41.
Vincenzo Viviani
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Vincenzo Viviani was an Italian mathematician and scientist. He was a pupil of Torricelli and a disciple of Galileo, born and raised in Florence, Viviani studied at a Jesuit school. There, Grand Duke Ferdinando II de Medici furnished him a scholarship to purchase mathematical books and he became a pupil of Evangelista Torricelli and worked on physics and geometry. In 1639, at the age of 17, he was an assistant of Galileo Galilei in Arcetri and he remained a disciple until Galileos death in 1642. From 1655 to 1656, Viviani edited the first edition of Galileos collected works, after Torricellis 1647 death, Viviani was appointed to fill his position at the Accademia dellArte del Disegno in Florence. Viviani was also one of the first members of the Grand Dukes experimental academy, the Accademia del Cimento, in 1660, Viviani and Giovanni Alfonso Borelli conducted an experiment to determine the speed of sound. The currently accepted value is 331.29 m/s at 0 °C or 340.29 m/s at sea level and it has also been claimed that in 1661 he experimented with the rotation of pendulums,190 years before the famous demonstration by Foucault. By 1666, Viviani started to receive many job offers as his reputation as a mathematician grew and that same year, Louis XIV of France offered him a position at the Académie Royale and John II Casimir of Poland offered Viviani a post as his astronomer. Fearful of losing Viviani, the Grand Duke appointed him court mathematician, Viviani accepted this post and turned down his other offers. In 1687, he published a book on engineering, Discorso intorno al difendersi da riempimenti e dalle corrosione de fiumi, upon his death, Viviani left an almost completed work on the resistance of solids, which was subsequently completed and published by Luigi Guido Grandi. In 1737, the Church finally allowed Galileo to be reburied in a grave with an elaborate monument, the monument that was created in the church of Santa Croce was constructed with the help of funds left by Viviani for that specific purpose. Vivianis own remains were moved to Galileos new grave as well, the lunar crater Viviani is named after him. In Florence, Viviani had Galileos life and achievements written in Latin on the façade of his palace, the palace was then renamed Palazzo dei Cartelloni. Racconto istorico della vita di Galileo Galilei Galileos Leaning Tower of Pisa experiment Vivianis theorem Vivianis curve Viviani page at Rice Universitys Galileo Project Vivianis Theorem
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World War II
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World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the worlds countries—including all of the great powers—eventually forming two opposing alliances, the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. Marked by mass deaths of civilians, including the Holocaust and the bombing of industrial and population centres. These made World War II the deadliest conflict in human history, from late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, Poland, Finland, Romania and the Baltic states. In December 1941, Japan attacked the United States and European colonies in the Pacific Ocean, and quickly conquered much of the Western Pacific. The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, near Hawaii, in 1944, the Western Allies invaded German-occupied France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy, thus ended the war in Asia, cementing the total victory of the Allies. World War II altered the political alignment and social structure of the world, the United Nations was established to foster international co-operation and prevent future conflicts. The victorious great powers—the United States, the Soviet Union, China, the United Kingdom, the Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Asia, most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities, the start of the war in Europe is generally held to be 1 September 1939, beginning with the German invasion of Poland, Britain and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937, or even the Japanese invasion of Manchuria on 19 September 1931. Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously and this article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939, the exact date of the wars end is also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945, rather than the formal surrender of Japan
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Allies of World War II
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The Allies of World War II, called the United Nations from the 1 January 1942 declaration, were the countries that together opposed the Axis powers during the Second World War. The Allies promoted the alliance as seeking to stop German, Japanese, at the start of the war on 1 September 1939, the Allies consisted of France, Poland and the United Kingdom, and dependent states, such as the British India. Within days they were joined by the independent Dominions of the British Commonwealth, Australia, Canada, New Zealand, Poland was a minor factor after its defeat in 1939, France was a minor factor after its defeat in 1940. China had already been into a war with Japan since the Marco Polo Bridge Incident of 1937. The alliance was formalised by the Declaration by United Nations, from 1 January 1942, however, the name United Nations was rarely used to describe the Allies during the war. The leaders of the Big Three – the UK, the Soviet Union, in 1945, the Allied nations became the basis of the United Nations. The origins of the Allied powers stem from the Allies of World War I, Germany resented signing Treaty of Versailles. The new Weimar republics legitimacy became shaken, by the early 1930s, the Nazi Party led by Adolf Hitler became the dominant revanchist movement in Germany and Hitler and the Nazis gained power in 1933. The Nazi regime demanded the cancellation of the Treaty of Versailles and made claims to German-populated Austria. The likelihood of war was high, and the question was whether it could be avoided through strategies such as appeasement, in Asia, when Japan seized Manchuria in 1931, the League of Nations condemned it for aggression against China. Japan responded by leaving the League of Nations in March 1933, after four quiet years, the Sino-Japanese War erupted in 1937 with Japanese forces invading China. The League of Nations condemned Japans actions and initiated sanctions on Japan, the United States, in particular, was angered at Japan and sought to support China. In March 1939, Germany took over Czechoslovakia, violating the Munich Agreement signed six months before, Britain and France decided that Hitler had no intention to uphold diplomatic agreements and responded by preparing for war. On 31 March 1939, Britain formed the Anglo-Polish military alliance in an effort to avert a German attack on the country, also, the French had a long-standing alliance with Poland since 1921. The Soviet Union sought an alliance with the powers. The agreement secretly divided the independent nations of eastern Europe between the two powers and assured adequate oil supplies for the German war machine, on 1 September 1939, Germany invaded Poland, two days later Britain and France declared war on Germany. Then, on 17 September 1939, the Soviet Union invaded Poland from the east, a Polish government-in-exile was set up and it continued to be one of the Allies, a model followed by other occupied countries. After a quiet winter, Germany in April 1940 invaded and quickly defeated Denmark, Norway, Belgium, Britain and its Empire stood alone against Hitler and Mussolini
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United States Army
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The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, from the time of its inception, the military played a decisive role in the history of the United States. A sense of unity and identity was forged as a result of victory in the First Barbary War. Even so, the Founders were suspicious of a permanent military force and it played an important role in the American Civil War, where leading generals on both sides were picked from members of the United States military. Not until the outbreak of World War II did a standing army become officially established. The National Security Act of 1947, adopted following World War II and during the Cold Wars onset, the U. S. military is one of the largest militaries in terms of number of personnel. It draws its personnel from a pool of paid volunteers. As of 2016, the United States spends about $580.3 billion annually to fund its military forces, put together, the United States constitutes roughly 40 percent of the worlds military expenditures. For the period 2010–14, the Stockholm International Peace Research Institute found that the United States was the worlds largest exporter of major arms, the United States was also the worlds eighth largest importer of major weapons for the same period. The history of the U. S. military dates to 1775 and these forces demobilized in 1784 after the Treaty of Paris ended the War for Independence. All three services trace their origins to the founding of the Continental Army, the Continental Navy, the United States President is the U. S. militarys commander-in-chief. Rising tensions at various times with Britain and France and the ensuing Quasi-War and War of 1812 quickened the development of the U. S. Navy, the reserve branches formed a military strategic reserve during the Cold War, to be called into service in case of war. Time magazines Mark Thompson has suggested that with the War on Terror, Command over the armed forces is established in the United States Constitution. The sole power of command is vested in the President by Article II as Commander-in-Chief, the Constitution also allows for the creation of executive Departments headed principal officers whose opinion the President can require. This allowance in the Constitution formed the basis for creation of the Department of Defense in 1947 by the National Security Act, the Defense Department is headed by the Secretary of Defense, who is a civilian and member of the Cabinet. The Defense Secretary is second in the chain of command, just below the President. Together, the President and the Secretary of Defense comprise the National Command Authority, to coordinate military strategy with political affairs, the President has a National Security Council headed by the National Security Advisor. The collective body has only power to the President
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Sergeant
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Sergeant is a rank in many uniformed organizations, principally military and policing forces. Its origin is the Latin serviens, one who serves, through the French term sergent, the term sergeant refers to a non-commissioned officer placed above the rank of a corporal and a police officer immediately below a lieutenant. In most armies the rank of sergeant corresponds to command of a squad, in Commonwealth armies, it is a more senior rank, corresponding roughly to a platoon second-in-command. In the United States Army, sergeant is a junior rank corresponding to a four-soldier fireteam leader. More senior non-commissioned ranks are often variations on sergeant, for example staff sergeant, many countries use sergeant rank, whether in English or using a cognate with the same origin in another language. The equivalent rank in Arab armies is raqeeb, meaning overseer or watcher, in medieval European usage, a sergeant was simply any attendant or officer with a protective duty. Any medieval knight or military order of knighthood might have sergeants-at-arms, the etymology of the term is from Anglo-French sergant, serjant servant, valet, court official, soldier, from Middle Latin servientem servant, vassal, soldier. Later, a sergeant was a man of what would now be thought of as the middle class. Sergeants could fight either as heavy to light cavalry, or as well trained professional infantry, most notable medieval mercenaries fell into the sergeant class, such as Flemish crossbowmen and spearmen, who were seen as reliable quality troops. The sergeant class was deemed to be half of a knight in military value. A specific kind of military sergeant was the serjeant-at-arms, one of a body of armed men retained by English lords, the title is now given to an officer in modern legislative bodies who is charged with keeping order during meetings and, if necessary, forcibly removing disruptive members. The responsibilities of a sergeant differ from army to army, there are usually several ranks of sergeant, each corresponding to greater experience and responsibility for the daily lives of the soldiers of larger units. Sergeant is a rank in both the Australian Army and the Royal Australian Air Force, the ranks are equivalent to each other and the Royal Australian Navy rank of petty officer. The Australian Army rank of sergeant is now redundant and is no longer awarded, due to being outside the rank equivalencies. Chief petty officers and flight sergeants are not required to call a warrant officer class two sir in accordance with Australian Defence Force Regulations 1952. The rank of sergeant exists in all Australian police forces and is more senior than a constable or senior constable, New South Wales Police Force, for example, has the additional rank of incremental sergeant. This is a progression, following appointment as a sergeant for seven years. An incremental sergeant rank is less senior than a senior sergeant but is more senior than a sergeant, upon appointment as a sergeant or senior sergeant, the sergeant is given a warrant of appointment under the commissioners hand and seal
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Artillery
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Artillery is a class of large military weapons built to fire munitions far beyond the range and power of infantrys small arms. Early artillery development focused on the ability to breach fortifications, and led to heavy, as technology improved, lighter, more mobile field artillery developed for battlefield use. This development continues today, modern self-propelled artillery vehicles are highly mobile weapons of great versatility providing the largest share of an armys total firepower, in its earliest sense, the word artillery referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. In common speech, the artillery is often used to refer to individual devices, along with their accessories and fittings. However, there is no generally recognised generic term for a gun, howitzer, mortar, and so forth, the United States uses artillery piece, the projectiles fired are typically either shot or shell. Shell is a widely used term for a projectile, which is a component of munitions. By association, artillery may also refer to the arm of service that customarily operates such engines, in the 20th Century technology based target acquisition devices, such as radar, and systems, such as sound ranging and flash spotting, emerged to acquire targets, primarily for artillery. These are usually operated by one or more of the artillery arms, Artillery originated for use against ground targets—against infantry, cavalry and other artillery. An early specialist development was coastal artillery for use against enemy ships, the early 20th Century saw the development of a new class of artillery for use against aircraft, anti-aircraft guns. Artillery is arguably the most lethal form of land-based armament currently employed, the majority of combat deaths in the Napoleonic Wars, World War I, and World War II were caused by artillery. In 1944, Joseph Stalin said in a speech that artillery was the God of War, although not called as such, machines performing the role recognizable as artillery have been employed in warfare since antiquity. The first references in the historical tradition begin at Syracuse in 399 BC. From the Middle Ages through most of the era, artillery pieces on land were moved by horse-drawn gun carriages. In the contemporary era, the artillery and crew rely on wheeled or tracked vehicles as transportation, Artillery used by naval forces has changed significantly also, with missiles replacing guns in surface warfare. The engineering designs of the means of delivery have likewise changed significantly over time, in some armies, the weapon of artillery is the projectile, not the equipment that fires it. The process of delivering fire onto the target is called gunnery, the actions involved in operating the piece are collectively called serving the gun by the detachment or gun crew, constituting either direct or indirect artillery fire. The term gunner is used in armed forces for the soldiers and sailors with the primary function of using artillery. The gunners and their guns are usually grouped in teams called either crews or detachments, several such crews and teams with other functions are combined into a unit of artillery, usually called a battery, although sometimes called a company
