1.
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
2.
Palazzo Pubblico
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The Palazzo Pubblico is a palace in Siena, Tuscany, central Italy. Construction began in 1297 and its purpose was to house the republican government, consisting of the Podestà. The outside of the structure is an example of Italian medieval architecture with Gothic influences, the lower story is stone, the upper crenelatted stories are made of brick. The facade of the palace is curved inwards to reflect the outwards curve of the Piazza del Campo. The campanile or bell tower, Torre del Mangia, was built between 1325 and 1344 with its crown designed by the painter, Lippo Memmi. The tower was designed to be taller than the tower in neighboring rival Florence and it was fitted with a mechanical clock during the mid-14th century. Nearly every major room in the palace contains frescoes and these were unusual for the time in that they were commissioned by the governing body of the city, rather than by the Church or by a religious fraternity. They are also unusual in many of them depict secular subjects instead of the religious subjects which are overwhelmingly typical of Italian art of this era. The most famous of the frescoes are three panels in the series on government in the Hall of the Nine by Ambrogio Lorenzetti. These frescoes are collectively known as The Allegory of Good and Bad Government, the Allegory of Good Government depicts the personification of Justice as a woman. She gestures to the scales of balance, held by the personification of Wisdom floating over her throne, on the viewers left, a convicted criminal is beheaded, on the right, figures receive the rewards of justice. The men face towards the largest figure in the image, a located in the center right. The judge is surrounded by additional personifications including Peace, who is represented as a fashionable, the allegory carries a strong social message of the value of the stable republican government of Siena. It combines elements of life with references to the importance of religion in the city at the time. The figure of Justice resembles the figure of Mary, Queen of Heaven, the Judge reflects the tradition in the Christian Last Judgment to have God or Christ judging the saved on the left, the damned on the right. While classified as medieval or proto -renaissance art, these show a transition in thought. Flanking the Allegory are two paintings on perpendicular walls, Effects of Good Government and Effects of Bad Government. Both these frescoes depict a view of Siena and its countryside
3.
Tower
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A tower is a tall structure, taller than it is wide, often by a significant margin. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, Towers are specifically distinguished from buildings in that they are not built to be habitable but to serve other functions. Towers can be stand alone structures or be supported by adjacent buildings or can be a feature on top of a structure or building. Old English torr is from Latin turris via Old French tor, the Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean language, connected with the Illyrian toponym Βου-δοργίς. The oldest known may be the stone tower in walls of Neolithic Jericho. Some of the earliest towers were ziggurats, which existed in Sumerian architecture since the 4th millennium BC, the most famous ziggurats include the Sumerian Ziggurat of Ur, built the 3rd millennium BC, and the Etemenanki, one of the most famous examples of Babylonian architecture. The latter was built in Babylon during the 2nd millennium BC and was considered the tallest tower of the ancient world, some of the earliest surviving examples are the broch structures in northern Scotland, which are conical towerhouses. These and other examples from Phoenician and Roman cultures emphasised the use of a tower in fortification, for example, the name of the Moroccan city of Mogador, founded in the first millennium BC, is derived from the Phoenician word for watchtower. The Romans utilised octagonal towers as elements of Diocletians Palace in Croatia, which monument dates to approximately 300 AD, while the Servian Walls, the Chinese used towers as integrated elements of the Great Wall of China in 210 BC during the Qin Dynasty. Towers were also an important element of castles, other well known towers include the Leaning Tower of Pisa in Pisa, Italy built from 1173 until 1372 and the Two Towers in Bologna, Italy built from 1109 until 1119. The Himalayan Towers are stone towers located chiefly in Tibet built approximately 14th to 15th century, up to a certain height, a tower can be made with the supporting structure with parallel sides. However, above a height, the compressive load of the material is exceeded. This can be avoided if the support structure tapers up the building. A second limit is that of buckling—the structure requires sufficient stiffness to avoid breaking under the loads it faces, many very tall towers have their support structures at the periphery of the building, which greatly increases the overall stiffness. A third limit is dynamic, a tower is subject to varying winds, vortex shedding and these are often dealt with through a combination of simple strength and stiffness, as well as in some cases tuned mass dampers to damp out movements. Varying or tapering the outer aspect of the tower with height avoids vibrations due to vortex shedding occurring along the building simultaneously. Although not correctly called towers many modern skyscraper are often called towers, in the United Kingdom, tall domestic buildings are referred to as tower blocks. In the United States, the original World Trade Center had the nickname the Twin Towers, the tower throughout history has provided its users with an advantage in surveying defensive positions and obtaining a better view of the surrounding areas, including battlefields
4.
Siena
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Siena is a city in Tuscany, Italy. It is the capital of the province of Siena, the historic centre of Siena has been declared by UNESCO a World Heritage Site. It is one of the nations most visited tourist attractions, with over 163,000 international arrivals in 2008, Siena is famous for its cuisine, art, museums, medieval cityscape and the Palio, a horse race held twice a year. Siena, like other Tuscan hill towns, was first settled in the time of the Etruscans when it was inhabited by a called the Saina. A Roman town called Saena Julia was founded at the site in the time of the Emperor Augustus, the first document mentioning it dates from AD70. Some archaeologists assert that Siena was controlled for a period by a Gaulish tribe called the Senones, according to local legend, Siena was founded by Senius and Aschius, two sons of Remus and thus nephews of Romulus, after whom Rome was named. Supposedly after their fathers murder by Romulus, they fled Rome, taking them the statue of the she-wolf suckling the infants. Additionally they rode white and black horses, giving rise to the Balzana, some claim the name Siena derives from Senius. Other etymologies derive the name from the Etruscan family name Saina, Siena did not prosper under Roman rule. It was not sited near any major roads and lacked opportunities for trade and its insular status meant that Christianity did not penetrate until the 4th century AD, and it was not until the Lombards invaded Siena and the surrounding territory that it knew prosperity. Siena prospered as a trading post, and the constant streams of pilgrims passing to, the oldest aristocratic families in Siena date their line to the Lombards surrender in 774 to Charlemagne. This ultimately resulted in the creation of the Republic of Siena, the Republic existed for over four hundred years, from the late 11th century until the year 1555. During the golden age of Siena before the Black Death in 1348, in the Italian War of 1551–59, the republic was defeated by the rival Duchy of Florence in alliance with the Spanish crown. After 18 months of resistance, Siena surrendered to Spain on 17 April 1555, the new Spanish King Felipe II, owing huge sums to the Medici, ceded it to the Grand Duchy of Tuscany, to which it belonged until the unification of Italy in the 19th century. A Republican government of 700 Sienese families in Montalcino resisted until 1559, the picturesque city remains an important cultural centre, especially for humanist disciplines. The city lies at 322 m above sea level, the Siena Cathedral, begun in the 12th century, is a masterpiece of Italian Romanesque-Gothic architecture. Its main façade was completed in 1380, the original plan called for an ambitiously massive basilica, the largest then in the world, with, as was customary, an east-west nave. However, the scarcity of funds, in due to war and plague, truncated the project
5.
Tuscany
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Tuscany is a region in central Italy with an area of about 23,000 square kilometres and a population of about 3.8 million inhabitants. Tuscany is known for its landscapes, traditions, history, artistic legacy, Tuscany produces wines, including Chianti, Vino Nobile di Montepulciano, Morellino di Scansano and Brunello di Montalcino. Having a strong linguistic and cultural identity, it is considered a nation within a nation. Tuscany is traditionally a popular destination in Italy, and the main tourist destinations by number of tourist arrivals are Florence, Pisa, Montecatini Terme, Castiglione della Pescaia and Grosseto. The village of Castiglione della Pescaia is also the most visited destination in the region. Additionally, Siena, Lucca, the Chianti region, Versilia and Val dOrcia are also internationally renowned, Tuscany has over 120 protected nature reserves, making Tuscany and its capital Florence popular tourist destinations that attract millions of tourists every year. In 2012, the city of Florence was the worlds 89th most visited city, roughly triangular in shape, Tuscany borders the regions of Liguria to the northwest, Emilia-Romagna to the north and east, Umbria to the east and Lazio to the southeast. The comune of Badia Tedalda, in the Tuscan Province of Arezzo, has an exclave named Ca Raffaello within Emilia-Romagna, Tuscany has a western coastline on the Tyrrhenian Sea, containing the Tuscan Archipelago, of which the largest island is Elba. Tuscany has an area of approximately 22,993 square kilometres, surrounded and crossed by major mountain chains, and with few plains, the region has a relief that is dominated by hilly country used for agriculture. Hills make up nearly two-thirds of the total area, covering 15,292 square kilometres, and mountains. Plains occupy 8. 4% of the total area—1,930 square kilometres —mostly around the valley of the River Arno, many of Tuscanys largest cities lie on the banks of the Arno, including the capital Florence, Empoli and Pisa. The pre-Etruscan history of the area in the late Bronze and Iron Ages parallels that of the early Greeks, following this, the Villanovan culture saw Tuscany, and the rest of Etruria, taken over by chiefdoms. City-states developed in the late Villanovan before Orientalization occurred and the Etruscan civilization rose, the Etruscans created the first major civilization in this region, large enough to establish a transport infrastructure, to implement agriculture and mining and to produce vibrant art. The Etruscans lived in Etruria well into prehistory, throughout their existence, they lost territory to Magna Graecia, Carthage and Celts. Despite being seen as distinct in its manners and customs by contemporary Greeks, the cultures of Greece, one reason for its eventual demise was this increasing absorption by surrounding cultures, including the adoption of the Etruscan upper class by the Romans. Soon after absorbing Etruria, Rome established the cities of Lucca, Pisa, Siena, and Florence, endowed the area with new technologies and development, and ensured peace. These developments included extensions of existing roads, introduction of aqueducts and sewers, however, many of these structures have been destroyed by erosion due to weather. The Roman civilization in the West collapsed in the 5th century AD, in the years following 572, the Longobards arrived and designated Lucca the capital of their Duchy of Tuscia
6.
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
7.
Piazza del Campo
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Piazza del Campo is the principal public space of the historic center of Siena, Tuscany, Italy and is regarded as one of Europes greatest medieval squares. It is renowned worldwide for its beauty and architectural integrity, the Palazzo Pubblico and its Torre del Mangia, as well as various palazzi signorili surround the shell-shaped piazza. At the northwest edge is the Fonte Gaia, the twice-a-year horse-race, Palio di Siena, is held around the edges of the piazza. Siena may have had earlier Etruscan settlements, but it was not a considerable Roman settlement, the number of divisions is held to be symbolic of the rule of The Nine who laid out the campo and governed Siena at the height of its mediaeval splendour between 1292-1355. The Campo was and remains the point of public life in the City. From the piazza, eleven narrow shaded streets radiate into the city, at the foot of the Palazzo Pubblicos wall is the late Gothic Chapel of the Virgin built as an ex voto by the Sienese, after the terrible Black Death of 1348 had ended. Under the direction of the Committee of Nine, many miles of tunnels were constructed to bring water in aqueducts to fountains and thence to drain to the surrounding fields. The white marble Fonte Gaia was originally designed and built by Jacopo della Quercia, whose bas-reliefs from the basins sides are conserved in the Ospedale di St. Maria della Scala in Piazza Duomo. When they were set up in 1419, Jacopo della Quercias nude figures were the first two female nudes, who were neither Eve nor a repentant saint, to stand in a place since Antiquity. Two Weeks in Tuscany The Sight in the Piazza ItalyGuides. com, Piazza del Campo Many pictures Siena Piazza del Campo English Video Introduction
8.
Piazza
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A town square is an open public space commonly found in the heart of a traditional town used for community gatherings. Other names for town square are civic center, city square, urban square, market square, public square, piazza, plaza, most town squares are hardscapes suitable for open markets, music concerts, political rallies, and other events that require firm ground. Being centrally located, town squares are surrounded by small shops such as bakeries, meat markets, cheese stores. At their center is often a fountain, well, monument, many of those with fountains are actually called fountain square. In urban planning, a city square or urban square is an open area in a city. Red Square in Moscow was originally used as a marketplace and later became the stage for Soviet military parades. Similarly, Beijings Tiananmen Square was the scene of both communist parades and anti-government protests, john-F. -Kennedy-Platz was the site of the West Berlin town hall and John F. Kennedys famous Ich bin ein Berliner speech. New York Citys Times Square as well as Bryant Park, Washington, D. C. s National Mall, trafalgar Square in London does the same for the United Kingdom. Saint Peters Square in Vatican City, the enclave within Rome. Yonge-Dundas Square in Toronto is a renowned and famous square in Canada, nathan Phillips Square is a popular square in front of Torontos landmark City Hall. Hviezdoslavovo námestie is one of the squares in Bratislava and a centre of a social life. Dam Square in Amsterdam for the Netherlands, Main Market Square in Kraków, Market Place in Warsaw and Wrocław Main Square for Poland. The City Hall Square, Copenhagen for Denmark, praça do Comércio, in Lisbon, Portugal, was formerly known as the Terreiro do Paço. It was destroyed after the 1755 Lisbon earthquake but was rebuilt, the symmetrical buildings around the square hold government bureaus and ministries. Wenceslas Square is one of the city squares in the New Town of Prague. In Mainland China, Peoples Square is a designation for the central town square of modern Chinese cities. These squares are the site of government buildings, museums and other public buildings, the probably best-known and largest such square in China is Tienanmen Square. The German word for square is Platz, which also means Place and these have been focal points of public life in towns and cities from the Middle Ages to today
9.
Secularity
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Secularity is the state of being separate from religion, or of not being exclusively allied with or against any particular religion. Historically, the secular was not related or linked to religion. The idea of a dichotomy between religion and the secular originated in the 18th century European Enlightenment, one can regard eating and bathing as examples of secular activities, because there may not be anything inherently religious about them. Nevertheless, some religious traditions see both eating and bathing as sacraments, therefore making them religious activities within those world views, saying a prayer derived from religious text or doctrine, worshipping through the context of a religion, and attending a religious school are examples of religious activities. The secular is experienced in diverse ways ranging from separation of religion and state to being anti-religion or even pro-religion, a related term, secularism, involves the principle that government institutions and their representatives should remain separate from religious institutions, their beliefs, and their dignitaries. Many businesses and corporations, and some operate on secular lines. This stands in contrast to theocracy, government with deity as its highest authority, Secular and secularity derive from the Latin word saeculum which meant of a generation, belonging to an age or denoted a period of about one hundred years. In the ancient world, saeculum was not defined in contrast to any sacred concerns and had a usage in Latin. It was in Christian Latin of medieval times, that saeculum was used for distinguishing this temporal age of the world from the realm of God. The Christian doctrine that God exists outside time led medieval Western culture to use secular to indicate separation from specifically religious affairs and involvement in temporal ones. This does not necessarily imply hostility to God or religion, though some use the term this way, routinization — institutionalizing through integration into the society. Differentiation — a redefined place such as when accepting its status as one religion in a plural religious field or morphing into a more generic, disengagement — the detachment of certain facets of social life from religion. Transformation — gradual change over time in a sense that Protestantism became for Christianity. Generalization — a particular kind of change in which it becomes less specific, more abstract, has moderation of controversial and divisive claims. Desacralization — culture and rationality guide people while leaving out religious beings, segmentation — the development of specialized religious institutions, which take their place beside other specialized social institutions. Secularism — the only form that leads to rejection of religion. Examples of secular used in this way include, Secular authority, which involves legal, police, and military authority, as distinct from clerical authority, or matters under church control. Secular clergy in the Roman Catholic Church, who, traditionally, do not live the lives of the regular clergy and are therefore, in a sense
10.
Cremona
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Cremona listen is a city and comune in northern Italy, situated in Lombardy, on the left bank of the Po River in the middle of the Pianura Padana. It is the capital of the province of Cremona and the seat of the local city, Cremona is first mentioned in history as a settlement of the Cenomani, a Gallic tribe that arrived in the Po valley around 400 BC. However, the name Cremona most likely back to earlier settlers and puzzled the ancients. In 218 BC the Romans established on that spot their first military outpost north of the Po river, Cremona and nearby Placentia, were founded in the same year, as bases for penetration into what became the Roman Province of Gallia Cisalpina. Cremona quickly grew into one of the largest towns in northern Italy, as it was on the road connecting Genoa to Aquileia. The famous poet Virgil, who went to school in Cremona, had to forfeit his ancestral farm, when the Lombards invaded much of Italy in the second half of the 6th century AD, Cremona remained a Byzantine stronghold as part of the Exarchate of Ravenna. The city expanded towards the north-west, with the creation of a great trenched camp outside the walls, in 603, it was conquered by the Lombard king Agilulf and again destroyed. Its territory was divided between the two duchies of Brescia and Bergamo, however, in 615 queen Theodelinda, a devout Roman Catholic intent on converting her people, had Cremona rebuilt and re-installed a bishop there. Control of the city fell increasingly to its bishop, who became a Holy Roman Empire vassal after Charlemagnes conquest of Italy, in this way, Cremona increased its power and its prosperity steadily and some of its bishops had important roles between the 10th and 11th centuries. Bishop Liutprand of Cremona was a member of the Imperial court under the Saxony dynasty and its economy was boosted by the creation of a river port out of the former Byzantine fortress. However, the two bishops Lambert and Ubaldo created discord with the citys people, Emperor Conrad II settled the quarrel by entering in Cremona in 1037 together with the young Pope Benedict IX. Under Henry IV, Cremona refused to pay the oppressive taxes requested by the Empire, according to a legend, the great gonfaloniere Giovanni Baldesio of Cremona faced the emperor himself in a duel. As Henry was knocked from his horse, the city was saved the annual payment of the 3 kg golden ball, which, for that year, was instead given to Berta, Giovannis girlfriend, as her dowry. The first historical news about a free Cremona is from 1093, as it entered into an alliance led by Mathilde of Canossa, together with Lodi, Milan. The conflict ended with the defeat of Henry IV and his famous humiliation of Canossa to Pope Urban II in 1098, Cremona gained the Insula Fulcheria, the area around the nearby city of Crema, as its territory. After that time, the new commune warred against nearby cities to enlarge its territory, in 1107 Cremona conquered Tortona, but four years later its army was defeated near Bressanoro. As in many northern Italian cities, the people were divided into two opposing parties, the Guelphs, who were stronger in the new city, and the Ghibellines, the parties were so irreconcilable that the former built a second Communal Palace, the still existing Palazzo Cittanova. When Frederick Barbarossa descended into Italy to assert his authority, Cremona sided with him in order to gain his support against Crema, the subsequent victory and its loyal imperial stance earned Cremona the right to create a mint for its own coinage in 1154
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