1.
Triumphal arch
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A triumphal arch is a monumental structure in the shape of an archway with one or more arched passageways, often designed to span a road. The main structure is decorated with carvings, sculpted reliefs. More elaborate triumphal arches may have multiple archways, Triumphal arches are one of the most influential and distinctive types of architecture associated with ancient Rome. The survival of great Roman triumphal arches such as the Arch of Titus inspired many states and rulers, up to the present day. Triumphal arch is also the given to the arch above the entrance to the chancel of a medieval church where a rood can be placed. The origins of the Roman triumphal arch are unclear, Triumphal arch look similar to Mesopotamian Arch entrances like the Ishtar Gate but there is no evidence to support that the Romans got their influence from there. The development of the arch is often associated with ancient Roman architecture. To fully understand this development however it is important to understand the importance of basic arches in Roman civilization, the Romans had learned how to construct effective arches from the Etruscans, who lived in central Italy. This knowledge had a impact on the architecture of Roman civilization. As a result, the Romans used arches for things such as aqueducts, amphitheaters, bridges and they had effectively used the arch in various aspects of their civilization and city structure. Since the Romans had effectively perfected this architectural structure, one could conclude that the arch symbolized perfection, monumental gateways had already been in use for hundreds of years by civilizations such as the Hittites, Assyrians, Babylonians and Myceneans. There were precursors to the arch within the Roman world, in Italy. Surviving examples of Etruscan arches can still be seen at Perugia, the two key elements of the triumphal arch – a round-topped arch and a square entablature – had long been in use as separate architectural elements in ancient Greece. Entablatures were a part of the structural fabric of such buildings. The great innovation of the Romans was to combine a round arch, the first recorded Roman triumphal arches were set up in the time of the Roman Republic. Generals who were granted a triumph were termed triumphators and would erect fornices or honorific arches bearing statues to commemorate their victories, a number of fornices were built in Rome during the Republican era. Lucius Steritinus erected two in 196 BC to commemorate his victories in Hispania, another fornix was built on the Capitoline Hill by Scipio Africanus in 190 BC, and Quintus Fabius Maximus Allobrogicus constructed one in the Roman Forum in 121 BC. None of them today and little is known about their appearance
2.
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
3.
Constantinople
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Constantinople was the capital city of the Roman/Byzantine Empire, and also of the brief Latin, and the later Ottoman empires. It was reinaugurated in 324 AD from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, Constantinople was famed for its massive and complex defences. The first wall of the city was erected by Constantine I, Constantinople never truly recovered from the devastation of the Fourth Crusade and the decades of misrule by the Latins. The origins of the name of Byzantion, more known by the later Latin Byzantium, are not entirely clear. The founding myth of the city has it told that the settlement was named after the leader of the Megarian colonists, Byzas. The later Byzantines of Constantinople themselves would maintain that the city was named in honour of two men, Byzas and Antes, though this was likely just a play on the word Byzantion. During this time, the city was also called Second Rome, Eastern Rome, and Roma Constantinopolitana. As the city became the remaining capital of the Roman Empire after the fall of the West, and its wealth, population, and influence grew. In the language of other peoples, Constantinople was referred to just as reverently, the medieval Vikings, who had contacts with the empire through their expansion in eastern Europe used the Old Norse name Miklagarðr, and later Miklagard and Miklagarth. In Arabic, the city was sometimes called Rūmiyyat al-kubra and in Persian as Takht-e Rum, in East and South Slavic languages, including in medieval Russia, Constantinople was referred to as Tsargrad or Carigrad, City of the Caesar, from the Slavonic words tsar and grad. This was presumably a calque on a Greek phrase such as Βασιλέως Πόλις, the modern Turkish name for the city, İstanbul, derives from the Greek phrase eis tin polin, meaning into the city or to the city. In 1928, the Turkish alphabet was changed from Arabic script to Latin script, in time the city came to be known as Istanbul and its variations in most world languages. In Greece today, the city is still called Konstantinoúpolis/Konstantinoúpoli or simply just the City, apart from this, little is known about this initial settlement, except that it was abandoned by the time the Megarian colonists settled the site anew. A farsighted treaty with the emergent power of Rome in c.150 BC which stipulated tribute in exchange for independent status allowed it to enter Roman rule unscathed. The site lay astride the land route from Europe to Asia and the seaway from the Black Sea to the Mediterranean, and had in the Golden Horn an excellent and spacious harbour. He would later rebuild Byzantium towards the end of his reign, in which it would be briefly renamed Augusta Antonina, fortifying it with a new city wall in his name, Constantine had altogether more colourful plans. Rome was too far from the frontiers, and hence from the armies and the imperial courts, yet it had been the capital of the state for over a thousand years, and it might have seemed unthinkable to suggest that the capital be moved to a different location. Constantinople was built over 6 years, and consecrated on 11 May 330, Constantine divided the expanded city, like Rome, into 14 regions, and ornamented it with public works worthy of an imperial metropolis
4.
Byzantine Empire
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It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural, several signal events from the 4th to 6th centuries mark the period of transition during which the Roman Empires Greek East and Latin West divided. Constantine I reorganised the empire, made Constantinople the new capital, under Theodosius I, Christianity became the Empires official state religion and other religious practices were proscribed. Finally, under the reign of Heraclius, the Empires military, the borders of the Empire evolved significantly over its existence, as it went through several cycles of decline and recovery. During the reign of Maurice, the Empires eastern frontier was expanded, in a matter of years the Empire lost its richest provinces, Egypt and Syria, to the Arabs. This battle opened the way for the Turks to settle in Anatolia, the Empire recovered again during the Komnenian restoration, such that by the 12th century Constantinople was the largest and wealthiest European city. Despite the eventual recovery of Constantinople in 1261, the Byzantine Empire remained only one of several small states in the area for the final two centuries of its existence. Its remaining territories were annexed by the Ottomans over the 15th century. The Fall of Constantinople to the Ottoman Empire in 1453 finally ended the Byzantine Empire, the term comes from Byzantium, the name of the city of Constantinople before it became Constantines capital. This older name of the city would rarely be used from this point onward except in historical or poetic contexts. The publication in 1648 of the Byzantine du Louvre, and in 1680 of Du Canges Historia Byzantina further popularised the use of Byzantine among French authors, however, it was not until the mid-19th century that the term came into general use in the Western world. The Byzantine Empire was known to its inhabitants as the Roman Empire, the Empire of the Romans, Romania, the Roman Republic, Graikia, and also as Rhōmais. The inhabitants called themselves Romaioi and Graikoi, and even as late as the 19th century Greeks typically referred to modern Greek as Romaika and Graikika. The authority of the Byzantine emperor as the legitimate Roman emperor was challenged by the coronation of Charlemagne as Imperator Augustus by Pope Leo III in the year 800. No such distinction existed in the Islamic and Slavic worlds, where the Empire was more seen as the continuation of the Roman Empire. In the Islamic world, the Roman Empire was known primarily as Rûm, the Roman army succeeded in conquering many territories covering the entire Mediterranean region and coastal regions in southwestern Europe and north Africa. These territories were home to different cultural groups, both urban populations and rural populations. The West also suffered heavily from the instability of the 3rd century AD
5.
Turkey
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Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a cultural heritage. The country is encircled by seas on three sides, the Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, Ankara is the capital while Istanbul is the countrys largest city and main cultural and commercial centre. Approximately 70-80% of the countrys citizens identify themselves as ethnic Turks, other ethnic groups include legally recognised and unrecognised minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population, the area of Turkey has been inhabited since the Paleolithic by various ancient Anatolian civilisations, as well as Assyrians, Greeks, Thracians, Phrygians, Urartians and Armenians. After Alexander the Greats conquest, the area was Hellenized, a process continued under the Roman Empire. The Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, the empire reached the peak of its power in the 16th century, especially during the reign of Suleiman the Magnificent. During the war, the Ottoman government committed genocides against its Armenian, Assyrian, following the war, the conglomeration of territories and peoples that formerly comprised the Ottoman Empire was partitioned into several new states. Turkey is a member of the UN, an early member of NATO. Turkeys growing economy and diplomatic initiatives have led to its recognition as a regional power while her location has given it geopolitical, the name of Turkey is based on the ethnonym Türk. The first recorded use of the term Türk or Türük as an autonym is contained in the Old Turkic inscriptions of the Göktürks of Central Asia, the English name Turkey first appeared in the late 14th century and is derived from Medieval Latin Turchia. Similarly, the medieval Khazar Empire, a Turkic state on the shores of the Black. The medieval Arabs referred to the Mamluk Sultanate as al-Dawla al-Turkiyya, the Ottoman Empire was sometimes referred to as Turkey or the Turkish Empire among its European contemporaries. The Anatolian peninsula, comprising most of modern Turkey, is one of the oldest permanently settled regions in the world, various ancient Anatolian populations have lived in Anatolia, from at least the Neolithic period until the Hellenistic period. Many of these peoples spoke the Anatolian languages, a branch of the larger Indo-European language family, in fact, given the antiquity of the Indo-European Hittite and Luwian languages, some scholars have proposed Anatolia as the hypothetical centre from which the Indo-European languages radiated. The European part of Turkey, called Eastern Thrace, has also been inhabited since at least forty years ago. It is the largest and best-preserved Neolithic site found to date, the settlement of Troy started in the Neolithic Age and continued into the Iron Age
6.
Arch bridge
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An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side, a viaduct may be made from a series of arches, although other more economical structures are typically used today. Possibly the oldest existing bridge is the Mycenaean Arkadiko bridge in Greece from about 1300 BC. The stone corbel arch bridge is used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch, a more complete survey by the Italian scholar Vittorio Galliazzo found 931 Roman bridges, mostly of stone, in as many as 26 different countries. Roman arch bridges were usually semicircular, although a number were segmental arch bridges, generally, Roman bridges featured wedge-shaped primary arch stones of the same in size and shape. The Romans built both single spans and lengthy multiple arch aqueducts, such as the Pont du Gard and Segovia Aqueduct. Their bridges featured from an early time onwards flood openings in the piers, e. g. in the Pons Fabricius in Rome, Roman engineers were the first and until the industrial revolution the only ones to construct bridges with concrete, which they called Opus caementicium. The outside was covered with brick or ashlar, as in the Alcántara bridge. The Romans also introduced segmental arch bridges into bridge construction, trajans bridge over the Danube featured open-spandrel segmental arches made of wood. This was to be the longest arch bridge for a thousand years both in terms of overall and individual span length, while the longest extant Roman bridge is the 790 m long Puente Romano at Mérida. The late Roman Karamagara Bridge in Cappadocia may represent the earliest surviving bridge featuring a pointed arch, in medieval Europe, bridge builders improved on the Roman structures by using narrower piers, thinner arch barrels and lower span-rise ratios on bridges. Gothic pointed arches were introduced, reducing lateral thrust. The 14th century in particular saw bridge building reaching new heights, the bridge at Trezzo sullAdda, destroyed in the 15th century, even featured a span length of 72 m, not matched until 1796. Constructions such as the acclaimed Florentine segmental arch bridge Ponte Vecchio combined sound engineering with aesthetical appeal, the three elegant arches of the Renaissance Ponte Santa Trinita constitute the oldest elliptic arch bridge worldwide. In China, the oldest existing bridge is the Zhaozhou Bridge of 605 AD. The Zhaozhou Bridge, with a length of 167 feet and span of 123 feet, is the worlds first wholly stone open-spandrel segmental arch bridge, Bridges with perforated spandrels can be found worldwide, such as in China
7.
Limestone
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Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate, about 10% of sedimentary rocks are limestones. The solubility of limestone in water and weak acid solutions leads to karst landscapes, most cave systems are through limestone bedrock. The first geologist to distinguish limestone from dolomite was Belsazar Hacquet in 1778, like most other sedimentary rocks, most limestone is composed of grains. Most grains in limestone are skeletal fragments of organisms such as coral or foraminifera. Other carbonate grains comprising limestones are ooids, peloids, intraclasts and these organisms secrete shells made of aragonite or calcite, and leave these shells behind when they die. Limestone often contains variable amounts of silica in the form of chert or siliceous skeletal fragment, some limestones do not consist of grains at all, and are formed completely by the chemical precipitation of calcite or aragonite, i. e. travertine. Secondary calcite may be deposited by supersaturated meteoric waters and this produces speleothems, such as stalagmites and stalactites. Another form taken by calcite is oolitic limestone, which can be recognized by its granular appearance, the primary source of the calcite in limestone is most commonly marine organisms. Some of these organisms can construct mounds of rock known as reefs, below about 3,000 meters, water pressure and temperature conditions cause the dissolution of calcite to increase nonlinearly, so limestone typically does not form in deeper waters. Limestones may also form in lacustrine and evaporite depositional environments, calcite can be dissolved or precipitated by groundwater, depending on several factors, including the water temperature, pH, and dissolved ion concentrations. Calcite exhibits a characteristic called retrograde solubility, in which it becomes less soluble in water as the temperature increases. Impurities will cause limestones to exhibit different colors, especially with weathered surfaces, Limestone may be crystalline, clastic, granular, or massive, depending on the method of formation. Crystals of calcite, quartz, dolomite or barite may line small cavities in the rock, when conditions are right for precipitation, calcite forms mineral coatings that cement the existing rock grains together, or it can fill fractures. Travertine is a banded, compact variety of limestone formed along streams, particularly there are waterfalls. Calcium carbonate is deposited where evaporation of the leaves a solution supersaturated with the chemical constituents of calcite. Tufa, a porous or cellular variety of travertine, is found near waterfalls, coquina is a poorly consolidated limestone composed of pieces of coral or shells. During regional metamorphism that occurs during the building process, limestone recrystallizes into marble
8.
Turkish language
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Outside of Turkey, significant smaller groups of speakers exist in Germany, Bulgaria, Macedonia, Northern Cyprus, Greece, the Caucasus, and other parts of Europe and Central Asia. Cyprus has requested that the European Union add Turkish as an official EU language, in 1928, as one of Atatürks Reforms in the early years of the Republic of Turkey, the Ottoman Turkish alphabet was replaced with a Latin alphabet. The distinctive characteristics of Turkish are vowel harmony and extensive agglutination, the basic word order of Turkish is subject–object–verb. Turkish has no classes or grammatical gender. Turkish has a strong T–V distinction and usage of honorifics, Turkish uses second-person pronouns that distinguish varying levels of politeness, social distance, age, courtesy or familiarity toward the addressee. The plural second-person pronoun and verb forms are used referring to a person out of respect. Turkic languages belong to the Altaic language group, the Turkic family comprises some 30 living languages spoken across Eastern Europe, Central Asia, and Siberia. Turkish is a member of the Oghuz group of languages, a subgroup of the Turkic language family, there is a high degree of mutual intelligibility between Turkish and the other Oghuz Turkic languages, including Azerbaijani, Turkmen, Qashqai, Gagauz, and Balkan Gagauz Turkish. The earliest known Old Turkic inscriptions are the three monumental Orkhon inscriptions found in modern Mongolia, erected in honour of the prince Kul Tigin and his brother Emperor Bilge Khagan, these date back to the second Turk Kaghanate. The Seljuqs of the Oghuz Turks, in particular, brought their language, following the adoption of Islam c. Turkish literature during the Ottoman period, particularly Divan poetry, was influenced by Persian, including the adoption of poetic meters. One of the tasks of the newly established association was to initiate a reform to replace loanwords of Arabic. By banning the usage of imported words in the press, the association succeeded in removing several hundred words from the language. While most of the words introduced to the language by the TDK were newly derived from Turkic roots, owing to this sudden change in the language, older and younger people in Turkey started to differ in their vocabularies. While the generations born before the 1940s tend to use the terms of Arabic or Persian origin. The past few decades have seen the work of the TDK to coin new Turkish words to express new concepts and technologies as they enter the language. Many of these new words, particularly information technology terms, have received widespread acceptance, however, the TDK is occasionally criticized for coining words which sound contrived and artificial. Some earlier changes—such as bölem to replace fırka, political party—also failed to meet with popular approval, some words restored from Old Turkic have taken on specialized meanings, for example betik is now used to mean script in computer science
9.
Roman bridge
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Roman bridges, built by ancient Romans, were the first large and lasting bridges built. Roman bridges were built with stone and had the arch as the basic structure, most utilized concrete as well, which the Romans were the first to use for bridges. As with the vault and the dome the Romans were the first to realize the potential of arches for bridge construction. A more complete survey by the Italian scholar Vittorio Galliazzo found 931 Roman bridges, mostly of stone, Roman arch bridges were usually semicircular, although a few were segmental. A segmental arch is an arch that is less than a semicircle, generally, Roman bridges featured wedge-shaped primary arch stones of the same in size and shape. The Romans built both single spans and lengthy multiple arch aqueducts, such as the Pont du Gard and Segovia Aqueduct. Their bridges featured from an early time onwards flood openings in the piers, e. g. in the Pons Fabricius in Rome, Roman engineers were the first and until the industrial revolution the only ones to construct bridges with concrete, which they called Opus caementicium. The outside was covered with brick or ashlar, as in the Alcántara bridge. The Romans also introduced segmental arch bridges into bridge construction, trajans bridge over the Danube featured open-spandrel segmental arches made of wood. This was to be the longest arch bridge for a thousand years both in terms of overall and individual span length, while the longest extant Roman bridge is the 790 m long Puente Romano at Mérida. The late Roman Karamagara Bridge in Cappadocia may represent the earliest surviving bridge featuring a pointed arch, early Roman arch bridges, influenced by the ancient notion of the ideal form of the circle, often describe a full circle, with the stone arch continuing underground. A typical example is the Pons Fabricius in Rome, later, Roman masonry bridges rested mostly on semi-circular arches, or, to a lesser extent, on segmental arches. In addition, a number of arch forms make rare appearances. Built in 142 BC, the Pons Aemilius, later named Ponte Rotto is the oldest Roman stone bridge in Rome and they were most of the time at least 2 metres above the body of water. An example of temporary military bridge construction are the two Caesars Rhine bridges, the largest rivers to be spanned by solid bridges by the Romans were the Danube and the Rhine, the two largest European rivers west of the Eurasian Steppe. The lower Danube was crossed by least two and the middle and lower Rhine by four different bridges, for rivers with strong currents and to allow swift army movements, pontoon bridges were also routinely employed. Going from the lack of records of pre-modern solid bridges spanning larger rivers. Catalogo generale, Vol.2, Treviso, Edizioni Canova, ISBN 88-85066-66-6 Gazzola, Piero, Ponti romani. org, Pontes longi - Roman bog bridges
10.
Sakarya River
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The Sakarya is the third longest river in Turkey. It runs through what in ancient times was known as Phrygia, the source of the river is the Bayat Yaylası which is located to the northeast of Afyon. Joined by the Porsuk Çayı close by the town of Polatlı, the Sakarya was once crossed by the Sangarius Bridge, constructed by the East Roman Emperor Justinian I. In the Middle Ages, the valley of the Sakarya was the home of the Söğüt tribe, from downstream to upstream, it is dammed at Gölpazarı, Yenice, Gökçekaya and Sarıyar. Battle of Sakarya Sakarya Province Sangarius Bridge Nana
11.
Greek language
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Greek is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean. It has the longest documented history of any living language, spanning 34 centuries of written records and its writing system has been the Greek alphabet for the major part of its history, other systems, such as Linear B and the Cypriot syllabary, were used previously. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic and many other writing systems. Together with the Latin texts and traditions of the Roman world, during antiquity, Greek was a widely spoken lingua franca in the Mediterranean world and many places beyond. It would eventually become the official parlance of the Byzantine Empire, the language is spoken by at least 13.2 million people today in Greece, Cyprus, Italy, Albania, Turkey, and the Greek diaspora. Greek roots are used to coin new words for other languages, Greek. Greek has been spoken in the Balkan peninsula since around the 3rd millennium BC, the earliest written evidence is a Linear B clay tablet found in Messenia that dates to between 1450 and 1350 BC, making Greek the worlds oldest recorded living language. Among the Indo-European languages, its date of earliest written attestation is matched only by the now extinct Anatolian languages, the Greek language is conventionally divided into the following periods, Proto-Greek, the unrecorded but assumed last ancestor of all known varieties of Greek. The unity of Proto-Greek would have ended as Hellenic migrants entered the Greek peninsula sometime in the Neolithic era or the Bronze Age, Mycenaean Greek, the language of the Mycenaean civilisation. It is recorded in the Linear B script on tablets dating from the 15th century BC onwards, Ancient Greek, in its various dialects, the language of the Archaic and Classical periods of the ancient Greek civilisation. It was widely known throughout the Roman Empire, after the Roman conquest of Greece, an unofficial bilingualism of Greek and Latin was established in the city of Rome and Koine Greek became a first or second language in the Roman Empire. The origin of Christianity can also be traced through Koine Greek, Medieval Greek, also known as Byzantine Greek, the continuation of Koine Greek in Byzantine Greece, up to the demise of the Byzantine Empire in the 15th century. Much of the written Greek that was used as the language of the Byzantine Empire was an eclectic middle-ground variety based on the tradition of written Koine. Modern Greek, Stemming from Medieval Greek, Modern Greek usages can be traced in the Byzantine period and it is the language used by the modern Greeks, and, apart from Standard Modern Greek, there are several dialects of it. In the modern era, the Greek language entered a state of diglossia, the historical unity and continuing identity between the various stages of the Greek language is often emphasised. Greek speakers today still tend to regard literary works of ancient Greek as part of their own rather than a foreign language and it is also often stated that the historical changes have been relatively slight compared with some other languages. According to one estimation, Homeric Greek is probably closer to demotic than 12-century Middle English is to modern spoken English, Greek is spoken by about 13 million people, mainly in Greece, Albania and Cyprus, but also worldwide by the large Greek diaspora. Greek is the language of Greece, where it is spoken by almost the entire population
12.
Anatolia
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Anatolia, in geography known as Asia Minor, Asian Turkey, Anatolian peninsula, or Anatolian plateau, is the westernmost protrusion of Asia, which makes up the majority of modern-day Turkey. The region is bounded by the Black Sea to the north, the Mediterranean Sea to the south, the Sea of Marmara forms a connection between the Black and Aegean Seas through the Bosphorus and Dardanelles straits and separates Anatolia from Thrace on the European mainland. Traditionally, Anatolia is considered to extend in the east to a line between the Gulf of Alexandretta and the Black Sea to the Armenian Highlands, thus, traditionally Anatolia is the territory that comprises approximately the western two-thirds of the Asian part of Turkey. The Turkification of Anatolia began under the Seljuk Empire in the late 11th century, however, various non-Turkic languages continue to be spoken by minorities in Anatolia today, including Kurdish, Assyrian, Armenian, Arabic, Laz, Georgian, and Greek. Traditionally, Anatolia is considered to extend in the east to a line running from the Gulf of Alexandretta to the Black Sea. This traditional geographical definition is used, for example, in the latest edition of Merriam-Websters Geographical Dictionary, under this definition, Anatolia is bounded to the east by the Armenian Highlands, and the Euphrates before that river bends to the southeast to enter Mesopotamia. To the southeast, it is bounded by the ranges that separate it from the Orontes valley in Syria, the first name the Greeks used for the Anatolian peninsula was Ἀσία, presumably after the name of the Assuwa league in western Anatolia. As the name of Asia came to be extended to areas east of the Mediterranean. The name Anatolia derives from the Greek ἀνατολή meaning “the East” or more literally “sunrise”, the precise reference of this term has varied over time, perhaps originally referring to the Aeolian, Ionian and Dorian colonies on the west coast of Asia Minor. In the Byzantine Empire, the Anatolic Theme was a theme covering the western, the modern Turkish form of Anatolia is Anadolu, which again derives from the Greek name Aνατολή. The Russian male name Anatoly and the French Anatole share the same linguistic origin, in English the name of Turkey for ancient Anatolia first appeared c. It is derived from the Medieval Latin Turchia, which was used by the Europeans to define the Seljuk controlled parts of Anatolia after the Battle of Manzikert. Human habitation in Anatolia dates back to the Paleolithic, neolithic Anatolia has been proposed as the homeland of the Indo-European language family, although linguists tend to favour a later origin in the steppes north of the Black Sea. However, it is clear that the Anatolian languages, the oldest branch of Indo-European, have spoken in Anatolia since at least the 19th century BC. The earliest historical records of Anatolia stem from the southeast of the region and are from the Mesopotamian-based Akkadian Empire during the reign of Sargon of Akkad in the 24th century BC, scholars generally believe the earliest indigenous populations of Anatolia were the Hattians and Hurrians. The region was famous for exporting raw materials, and areas of Hattian-, one of the numerous cuneiform records dated circa 20th century BC, found in Anatolia at the Assyrian colony of Kanesh, uses an advanced system of trading computations and credit lines. They were speakers of an Indo-European language, the Hittite language, originating from Nesa, they conquered Hattusa in the 18th century BC, imposing themselves over Hattian- and Hurrian-speaking populations. According to the most widely accepted Kurgan theory on the Proto-Indo-European homeland, however, the Hittites adopted the cuneiform script, invented in Mesopotamia
13.
Justinian I
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Justinian I, traditionally known as Justinian the Great and also Saint Justinian the Great in the Eastern Orthodox Church, was a Byzantine emperor from 527 to 565. During his reign, Justinian sought to revive the empires greatness, because of his restoration activities, Justinian has sometimes been called the last Roman in modern historiography. This ambition was expressed by the recovery of the territories of the defunct western Roman Empire. His general, Belisarius, swiftly conquered the Vandal kingdom in North Africa, the prefect Liberius reclaimed the south of the Iberian peninsula, establishing the province of Spania. These campaigns re-established Roman control over the western Mediterranean, increasing the Empires annual revenue by over a million solidi, during his reign Justinian also subdued the Tzani, a people on the east coast of the Black Sea that had never been under Roman rule before. A still more resonant aspect of his legacy was the rewriting of Roman law, the Corpus Juris Civilis. His reign also marked a blossoming of Byzantine culture, and his building program yielded such masterpieces as the church of Hagia Sophia, a devastating outbreak of bubonic plague in the early 540s marked the end of an age of splendour. Justinian was born in Tauresium around 482, a native speaker of Latin, he came from a peasant family believed to have been of Illyro-Roman or Thraco-Roman origins. The cognomen Iustinianus, which he later, is indicative of adoption by his uncle Justin. During his reign, he founded Justiniana Prima not far from his birthplace and his mother was Vigilantia, the sister of Justin. Justin, who was in the guard before he became emperor, adopted Justinian, brought him to Constantinople. As a result, Justinian was well educated in jurisprudence, theology, Justinian served for some time with the Excubitors but the details of his early career are unknown. Chronicler John Malalas, who lived during the reign of Justinian, tells of his appearance that he was short, fair skinned, curly haired, round faced, another contemporary chronicler, Procopius, compares Justinians appearance to that of tyrannical Emperor Domitian, although this is probably slander. When Emperor Anastasius died in 518, Justin was proclaimed the new emperor, during Justins reign, Justinian was the emperors close confidant. As Justin became senile near the end of his reign, Justinian became the de facto ruler, Justinian was appointed consul in 521 and later commander of the army of the east. Upon Justins death on 1 August 527, Justinian became the sole sovereign, as a ruler, Justinian showed great energy. He was known as the emperor who never sleeps on account of his work habits, nevertheless, he seems to have been amiable and easy to approach. Around 525, he married his mistress, Theodora, in Constantinople and she was by profession a courtesan and some twenty years his junior
14.
Pliny the Younger
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Gaius Plinius Caecilius Secundus, born Gaius Caecilius or Gaius Caecilius Cilo, better known as Pliny the Younger, was a lawyer, author, and magistrate of Ancient Rome. Plinys uncle, Pliny the Elder, helped raise and educate him, both Pliny the Elder and the Younger were witnesses to the eruption of Vesuvius in 79 AD, in which the former died. Pliny the Younger wrote hundreds of letters, of which 247 still survive and are of historical value. Some are addressed to reigning emperors or to such as the historian Tacitus. Pliny served as a magistrate under Trajan, and his letters to Trajan provide one of the few surviving records of the relationship between the imperial office and provincial governors. Pliny rose through a series of civil and military offices, the cursus honorum and he was a friend of the historian Tacitus and might have employed the biographer Suetonius on his staff. Pliny also came into contact with other men of the period, including the philosophers Artemidorus and Euphrates the Stoic. Pliny the Younger was born in Novum Comum around 61 AD, the son of Lucius Caecilius Cilo, born there, and his wife Plinia Marcella, a sister of Pliny the Elder. He was the grandson of Senator and landowner Gaius Caecilius, revered his uncle, Pliny the Elder, Cilo died at an early age, when Pliny was still young. As a result, the boy lived with his mother. His guardian and preceptor in charge of his education was Lucius Verginius Rufus, after being first tutored at home, Pliny went to Rome for further education. There he was taught rhetoric by Quintilian, a teacher and author. It was at time that Pliny became closer to his uncle Pliny the Elder. When Pliny the Younger was 17 or 18, his uncle Pliny the Elder died attempting to rescue victims of the Vesuvius eruption, in the same document the younger Pliny was adopted by his uncle. As a result, Pliny the Younger changed his name from Gaius Caecilius Cilo to Gaius Plinius Caecilius Secundus, there is some evidence that Pliny had a sibling. The trustees are apparently named in the inscription, L. Caecilius Valens and P. Caecilius Secundus, sons of Lucius, the word contubernalis describing Lutulla is the military term meaning tent-mate, which can only mean that she was living with Lucius, not as his wife. The first man mentioned, L. Caecilius Valens, is probably the older son, Pliny the Younger confirms that he was a trustee for the largess of my ancestors. It seems unknown to Pliny the Elder, so Valens mother was not his sister Plinia
15.
Trajan
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Trajan was Roman emperor from 98 to 117 AD. Born in the city of Italica in the province of Hispania Baetica, Trajans non-patrician family was of Italian, Trajan rose to prominence during the reign of emperor Domitian. Serving as a legatus legionis in Hispania Tarraconensis, in 89 Trajan supported Domitian against a revolt on the Rhine led by Antonius Saturninus, in September 96, Domitian was succeeded by Marcus Cocceius Nerva, an old and childless senator who proved to be unpopular with the army. After a brief and tumultuous year in power, culminating in a revolt by members of the Praetorian Guard, Nerva was compelled to adopt the more popular Trajan as his heir and he died on 27 January 98 and was succeeded by his adopted son without incident. Early in his reign, he annexed the Nabataean Kingdom, creating the province of Arabia Petraea and his conquest of Dacia enriched the empire greatly, as the new province possessed many valuable gold mines. However, its position north of the Danube made it susceptible to attack on three sides, and it was later abandoned by Emperor Aurelian. Trajans war against the Parthian Empire ended with the sack of the capital Ctesiphon and his campaigns expanded the Roman Empire to its greatest territorial extent. In late 117, while sailing back to Rome, Trajan fell ill and he was deified by the Senate and his ashes were laid to rest under Trajans Column. He was succeeded by his adopted son Hadrian, as an emperor, Trajans reputation has endured – he is one of the few rulers whose reputation has survived nineteen centuries. Every new emperor after him was honoured by the Senate with the wish felicior Augusto, among medieval Christian theologians, Trajan was considered a virtuous pagan. As far as ancient literary sources are concerned, an extant continuous account of Trajans reign does not exist, only fragments remain of the Getiká, a book by Trajans personal physician Titos Statilios Kriton. The Parthiká, a 17-volume account of the Parthian Wars written by Arrian, has met a similar fate, book 68 in Cassius Dios Roman History, which survives mostly as Byzantine abridgments and epitomes, is the main source for the political history of Trajans rule. Besides this, Pliny the Youngers Panegyricus and Dio of Prusas orations are the best surviving contemporary sources and it is certain that much of text of the letters that appear in this collection over Trajans signature was written and/or edited by Trajans Imperial secretary, his ab epistulis. Therefore, discussion of Trajan and his rule in modern historiography cannot avoid speculation, as well as recourse to sources such as archaeology. Marcus Ulpius Traianus was born on 18 September 53 AD in the Roman province of Hispania Baetica, Trajans birthplace of Italica was founded as a Roman military colony in 206 BC, though it is unknown when the Ulpii arrived there. Trajan was the son of Marcia, a Roman noblewoman and sister-in-law of the second Flavian Emperor Titus, and Marcus Ulpius Traianus, Marcus Ulpius Traianus the elder served Vespasian in the First Jewish-Roman War, commanding the Legio X Fretensis. Trajan himself was just one of many well-known Ulpii in a line that continued long after his own death and his elder sister was Ulpia Marciana, and his niece was Salonina Matidia. The patria of the Ulpii was Italica, in Spanish Baetica, as a young man, he rose through the ranks of the Roman army, serving in some of the most contested parts of the Empires frontier
16.
Canal
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Canals and navigations are human-made channels for water conveyance, or to service water transport vehicles. In the vernacular, both are referred to as canals, and in most cases, the works will have a series of dams. These areas are referred to as water levels, often just called levels. In contrast, a canal cuts across a drainage divide atop a ridge, many canals have been built at elevations towering over valleys and others water ways crossing far below. Cities need a lot of water and many canals with sources of water at a higher level can deliver water to a destination where there is a lack of water. The Roman Empires Aqueducts were such water supply canals, a navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the drainage basin of the river, a vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height. A true canal is a channel that cuts across a drainage divide, most commercially important canals of the first half of the 19th century were a little of each, using rivers in long stretches, and divide crossing canals in others. This is true for many canals still in use, there are two broad types of canal, Waterways, canals and navigations used for carrying vessels transporting goods and people. These can be subdivided into two kinds, Those connecting existing lakes, rivers, other canals or seas and oceans and those connected in a city network, such as the Canal Grande and others of Venice Italy, the gracht of Amsterdam, and the waterways of Bangkok. Aqueducts, water canals that are used for the conveyance and delivery of potable water for human consumption, municipal uses, hydro power canals. Historically canals were of importance to commerce and the development, growth. In 1855 the Lehigh Canal carried over 1.2 million tons of burning anthracite coal, by the 1930s the company which built. By the early 1880s, canals which had little ability to compete with rail transport, were off the map. In the next couple of decades, coal was diminished as the heating fuel of choice by oil. Later, after World War I when motor-trucks came into their own, Canals are built in one of three ways, or a combination of the three, depending on available water and available path, Human made streams A canal can be created where no stream presently exists. Either the body of the canal is dug or the sides of the canal are created by making dykes or levees by piling dirt, stone, the water for the canal must be provided from an external source, like streams or reservoirs. Where the new waterway must change elevation engineering works like locks, lifts or elevators are constructed to raise, examples include canals that connect valleys over a higher body of land, like Canal du Midi, Canal de Briare and the Panama Canal
17.
Bosphorus
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The Bosphorus or Bosporus is a narrow, natural strait and an internationally significant waterway located in northwestern Turkey. It forms part of the boundary between Europe and Asia, and separates Asian Turkey from European Turkey. The worlds narrowest strait used for navigation, the Bosphorus connects the Black Sea with the Sea of Marmara, and, by extension via the Dardanelles. Most of the shores of the strait are heavily settled, straddled by the city of Istanbuls metropolitan population of 17 million inhabitants extending inland from both coasts, together with the Dardanelles, the Bosphorus forms the Turkish Straits. This folk etymology was canonized by Aeschylus in Prometheus Bound, where Prometheus prophesies to Io that the strait would be named after her, the site where Io supposedly went ashore was near Chrysopolis, and was named Bous the Cow. The same site was known as Damalis, as it was where the Athenian general Chares had erected a monument to his wife Damalis. Historically, the Bosphorus was also known as the Strait of Constantinople, or the Thracian Bosphorus and these are expressed in Herodotus Histories,4.83, as Bosporus Thracius, Bosporus Thraciae, and Βόσπορος Θρᾴκιος, respectively. Other names by which the strait is referenced by Herodotus include Chalcedonian Bosporus, the term eventually came to be used as common noun βόσπορος, meaning a strait, and was also formerly applied to the Hellespont in Classical Greek by Aeschylus and Sophocles. Presently, the waterway is officially referred to as simply Bosphorus, the Marmara further connects to the Aegean and Mediterranean Seas via the Dardanelles. A common mistake made by those who are unfamiliar with the locale is to assume the Bosphorus is a river, when it is, in fact. The exact scientific cause and date of the formation of the Bosphorus remain the subject of debate among geologists, many geologists, however, claim that the strait is much older, even if relatively young on a geologic timescale. The Symplegades were defeated when the lyrical hero Jason obtained successful passage, whereupon the rocks became fixed, between these limits, the strait is 31 km long, with a width of 3,329 m at the northern entrance and 2,826 m at the southern entrance. Its maximum width is 3,420 m between Umuryeri and Büyükdere Limanı, and minimum width 700 m between Kandilli Point and Aşiyan, the depth of the Bosphorus varies from 13 to 110 m in midstream with an average of 65 m. The deepest location is between Kandilli and Bebek with 110 m, the most shallow locations are off Kadıköy İnciburnu on the northward route with 18 m and off Aşiyan Point on the southward route with 13 m. The study of the water and wind erosion of the straits relates to that of its formation, sections of the shore have been reinforced with concrete or rubble and sections of the strait prone to deposition are periodically dredged. These channels are the main pathway for sediments to the deep sea where they form sedimentary deposits. These deposits ultimately hold not only untapped reserves of gas and oil and our initial findings show that the flow in these channels is quite different to the flow in river channels on land. Specifically, as flow moves around a bend it spirals in the direction in the deep sea compared to the spiral found in river channels on land
18.
Bithynia
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Bithynia was an ancient region, kingdom and Roman province in the northwest of Asia Minor, adjoining the Propontis, the Thracian Bosporus and the Euxine Sea. It bordered Mysia to the southwest, Paphlagonia to the northeast along the Pontic coast, Bithynia was an independent kingdom from the 4th century BC. Its capital Nicomedia was rebuilt on the site of ancient Astacus in 264 BC by Nicomedes I of Bithynia. Bithynia fell to the Roman Republic in 74 BC, and became united with the Pontus region as the province of Bithynia et Pontus and it became a border region to the Seljuk Empire in the 13th century, and was eventually conquered by the Ottoman Turks in the 1330s. Several major cities sat on the shores of the Propontis, Nicomedia, Chalcedon, Cius. Bithynia also contained Nicaea, noted for being the birthplace of the Nicene Creed, on the west and southwest it was separated from Mysia by the river Rhyndacus and on the south it adjoined Phrygia and Galatia. It is occupied by mountains and forests, but has valleys, the most important mountain range is the Mysian Olympus, which towers above Bursa and is clearly visible as far away as Istanbul. Its summits are covered with snow for a part of the year. East of this the range extends for more than 100 miles, both of these ranges are part of the border of mountains which bound the great tableland of Anatolia, Turkey. At its extremity is situated the town of Gemlik at the mouth of a valley, communicating with the lake of Iznik. The Parthenius, the boundary of the province, is a much less considerable stream. The valleys towards the Black Sea abound in fruit trees of all kinds, such as oranges, while the valley of the Sangarius, extensive plantations of mulberry trees supply the silk for which Bursa has long been celebrated, and which is manufactured there on a large scale. Bithynia is named for the Thracian tribe of the Bithyni, mentioned by Herodotus alongside the Thyni, the Thraco-Phrygian migration from the Balkans to Asia Minor would have taken place at some point following the Bronze Age collapse or during the early Iron Age. Herodotus mentions the Thyni and Bithyni as settling side by side, but the last king, Nicomedes IV, was unable to maintain himself in power against Mithridates VI of Pontus. After being restored to his throne by the Roman Senate, he bequeathed his kingdom through his will to the Roman republic, the coinage of these kings show their regal portraits, which tend to be engraved in an extremely accomplished Hellenistic style. As a Roman province, the boundaries of Bithynia changed frequently, during this period, Bithynia was commonly united for administrative purposes with the province of Pontus. Under the Byzantine Empire, Bithynia was again divided into two provinces, separated by the Sangarius, only the area to the west of the river retained the name of Bithynia. Bithynia attracted much attention because of its roads and its position between the frontiers of the Danube in the north and the Euphrates in the south-east
19.
Roman roads
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They provided efficient means for the overland movement of armies, officials, and civilians, and the inland carriage of official communications and trade goods. Roman roads were of several kinds, ranging from local roads to broad, long-distance highways built to connect cities, major towns. These major roads were often stone-paved and metaled, cambered for drainage and they were laid along accurately surveyed courses, and some were cut through hills, or conducted over rivers and ravines on bridgework. Sections could be supported over marshy ground on rafted or piled foundations, at the peak of Romes development, no fewer than 29 great military highways radiated from the capital, and the late Empires 113 provinces were interconnected by 372 great roads. The whole comprised more than 400,000 kilometres of roads, in Gaul alone, no less than 21,000 kilometres of roadways are said to have been improved, and in Britain at least 4,000 kilometres. The courses of many Roman roads survived for millennia, some are overlaid by modern roads, livy mentions some of the most familiar roads near Rome, and the milestones on them, at times long before the first paved road—the Appian Way. Unless these allusions are just simple anachronisms, the referred to were probably at the time little more than levelled earthen tracks. Thus, the Via Gabina is mentioned in about 500 BC, the Via Latina in about 490 BC, the Via Nomentana, in 449 BC, the Via Labicana in 421 BC, and the Via Salaria in 361 BC. There is hardly a district to which we expect a Roman official to be sent, on service either civil or military. They reach the Wall in Britain, run along the Rhine, the Danube, and the Euphrates, and cover, as with a network, a road map of the empire reveals that it was generally laced with a dense network of prepared viae. Beyond its borders there were no paved roads, however, it can be supposed that footpaths, there were, for instance, some pre-Roman ancient trackways in Britain, such as the Ridgeway and the Icknield Way. For specific roads, see Roman road locations below, the Laws of the Twelve Tables, dated to about 450 BC, specified that a road shall be 8 Roman feet wide where straight and twice that width where curved. Actual practices varied from this standard, the Tables command Romans to build roads and give wayfarers the right to pass over private land where the road is in disrepair. Roman law defined the right to use a road as a servitus, the ius eundi established a claim to use an iter, or footpath, across private land, the ius agendi, an actus, or carriage track. A via combined both types of servitutes, provided it was of the width, which was determined by an arbiter. The default width was the latitudo legitima of 8 feet, Roman law and tradition forbade the use of vehicles in urban areas, except in certain cases. Married women and government officials on business could ride, the Lex Iulia Municipalis restricted commercial carts to night-time access in the city within the walls and within a mile outside the walls. Such roads led either to the sea, or to a town, or to a public river and these roads bear the names of their constructors
20.
Sasanian Empire
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The Sasanian Empire was founded by Ardashir I, after the fall of the Parthian Empire and the defeat of the last Arsacid king, Artabanus V. According to a legend, the vexilloid of the Sasanian Empire was the Derafsh Kaviani, in many ways, the Sasanian period witnessed the peak of ancient Iranian civilization. Persia influenced Roman culture considerably during the Sasanian period, the Sasanians cultural influence extended far beyond the empires territorial borders, reaching as far as Western Europe, Africa, China and India. It played a prominent role in the formation of both European and Asian medieval art, much of what later became known as Islamic culture in art, architecture, music and other subject matter was transferred from the Sasanians throughout the Muslim world. Conflicting accounts shroud the details of the fall of the Parthian Empire, the Sassanid Empire was established in Estakhr by Ardashir I. Papak was originally the ruler of a region called Khir, however, by the year 200, he managed to overthrow Gochihr, and appoint himself as the new ruler of the Bazrangids. His mother, Rodhagh, was the daughter of the governor of Pars. Papak and his eldest son Shapur managed to expand their power all of Pars. The subsequent events are unclear, due to the nature of the sources. It is certain, however, that following the death of Papak, Ardashir, sources reveal that Shapur, leaving for a meeting with his brother, was killed when the roof of a building collapsed on him. By the year 208, over the protests of his brothers who were put to death. Once Ardashir was appointed shahanshah, he moved his capital further to the south of Pars, the city, well supported by high mountains and easily defendable through narrow passes, became the center of Ardashirs efforts to gain more power. The city was surrounded by a high, circular wall, probably copied from that of Darabgird, in a second attempt to destroy Ardashir, Artabanus V himself met Ardashir in battle at Hormozgan, where Artabanus V met his death. Following the death of the Parthian ruler, Ardashir I went on to invade the provinces of the now defunct Parthian Empire. Ardashir was aided by the geography of the province of Fars, in the next few years, local rebellions would form around the empire. Nonetheless, Ardashir I further expanded his new empire to the east and northwest, conquering the provinces of Sistan, Gorgan, Khorasan, Margiana, Balkh and he also added Bahrain and Mosul to Sassanids possessions. In the west, assaults against Hatra, Armenia and Adiabene met with less success, in 230, he raided deep into Roman territory, and a Roman counter-offensive two years later ended inconclusively, although the Roman emperor, Alexander Severus, celebrated a triumph in Rome. Ardashir Is son Shapur I continued the expansion of the empire, conquering Bactria, invading Roman Mesopotamia, Shapur I captured Carrhae and Nisibis, but in 243 the Roman general Timesitheus defeated the Persians at Rhesaina and regained the lost territories
21.
Pontoon bridge
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A pontoon bridge, also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the limits the maximum load they can carry. Most pontoon bridges are temporary, used in wartime and civil emergencies, permanent floating bridges are useful for sheltered water-crossings where it is not considered economically feasible to suspend a bridge from anchored piers. Such bridges can require a section that is elevated, or can be raised or removed, a pontoon bridge is a collection of specialized, shallow draft boats or floats, connected together to cross a river or canal, with a track or deck attached on top. The water buoyancy supports the boats, limiting the load to the total. The supporting boats or floats can be open or closed, temporary or permanent in installation, the decking may be temporary or permanent, and constructed out of wood, modular metal, or asphalt or concrete over a metal frame. The spelling ponton in English dates from at least 1870, the use continued in references found in U. S. patents during the 1890s. It continued to be spelled in that fashion through World War II, U. S. combat engineers commonly pronounced the word ponton rather than pontoon and U. S. military manuals spelled it using a single o. The original word was derived from Old French ponton, from Latin ponto, when designing a pontoon bridge, the civil engineer must take into consideration the Archimedes principle looking at the maximum amount of load that it is intended to support. Each pontoon can support an equal to the mass of the water that it displaces. If the maximum load of a section is exceeded, one or more pontoons become submerged. The roadway across the pontoons must also be able to support the load, survey to determine the best location. The connection to shore often causes problems, requiring the design of approaches that are not too steep, keep the bank from crumbling, Floating bridges were typically constructed using wood. Such a wooden floating bridge could be built in a series of sections, Pontoons were formed using boats, several barrels lashed together, rafts of timbers, or some combination of these. Each bridge section consisted of one or more pontoons, which were maneuvered into position and then anchored, using underwater and these pontoons were then linked together using wooden stringers called balks. The balks were then covered by a series of cross planks called chesses to form a surface. Some bridges have been designed and survived much longer, in Hobart a long pontoon bridge built in 1943 was only replaced after 21 years. The fourth Galata Bridge that spans the Golden Horn in Istanbul, Turkey was built in 1912, precautions are needed to protect a pontoon bridge from becoming damaged
22.
Procopius
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Procopius of Caesarea was a prominent late antique scholar from Palaestina Prima. He is commonly held to be the last major historian of the ancient Western world, apart from his own writings, the main source for Procopius life is an entry in the Suda, a Byzantine encyclopaedia, written sometime after 975, which tells everything about his early life. He was a native of Caesarea in the Roman Province Palaestina Prima and he evidently knew Latin, as was natural for a man with legal training. In 527, the first year of Eastern Roman Emperor Justinians reign, he became the adsessor for Belisarius, Procopius was with Belisarius on the eastern front until the latter was defeated at the Battle of Callinicum in 531 and recalled to Constantinople. Procopius witnessed the Nika riots of January,532, which Belisarius, Procopius recorded a few of the extreme weather events of 535–536, although these were presented as a backdrop to Roman military activities, such as a mutiny, in and near Carthage. He rejoined Belisarius for his campaign against the Ostrogothic kingdom in Italy and experienced the Gothic siege of Rome that lasted a year and nine days and he witnessed Belisarius entry into the Gothic capital, Ravenna, in 540. Book Eight of the Wars of Justinian, and the Secret History, suggest that his relationship with Belisarius seems to have cooled thereafter. When Belisarius was sent back to Italy in 544 to cope with a renewal of the war with the Goths, now led by the able king Totila, Procopius appears to have no longer been on Belisarius staff. As magister militum, Belisarius was a vir illustris, and Procopius, as his adsessor, must and he thus belonged to the middle-ranking group of the ordo senatorius. However, the Suda, which is well informed in such matters. Should this information be correct, then Procopius had a seat in the senate of Constantinople and it is not known when Procopius himself died, and many historians date his death to 554, but in 562 there was an urban prefect of Constantinople who happened to be called Procopius. In that year, Belisarius was implicated in a conspiracy and was brought before this urban prefect, the writings of Procopius are the primary source of information for the rule of the Eastern Roman emperor Justinian. Procopius Wars of Justinian is clearly his most important work, although it is not as known as the Secret History. The first two deal with the conflict between the Romans and Sassanid Persia in Mesopotamia, Syria, Armenia, Lazica and Caucasian Iberia. They also cover the early career of the Roman general Belisarius, Procopius patron, the next two books, the Vandal War, cover Belisarius successful campaign against the Vandal kingdom in Roman Africa. The remaining books cover the Gothic War, the campaigns by Belisarius and others to recapture Italy and this includes accounts of the sieges of Naples and Rome. Later, Procopius added a book, which brings the history to 552/553. This eighth book covers both in Italy and on the Eastern frontier
23.
Paul the Silentiary
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Paul the Silentiary, also known as Paulus Silentiarius, was a Greek poet. His contemporary, the historian and poet Agathias, describes him as a rich man, Paul is best known and most admired for his short poems in the classical tradition, about 80 of which have been preserved in the Greek Anthology. Forty of these are love poems, two are replies to poems by Agathias, in another Paul laments the death of Damocharis of Cos, Agathiass favorite pupil. These short poems also contain interesting social information and he also composed in verse an ecphrasis or evocative account of Justinians cathedral of the Holy Wisdom, describing its architecture and decoration after the reconstruction of the dome in 562. Paul sees the church as a meadow of many-coloured marbles, the poem was probably commissioned by Justinian himself, and Paul had to read verses to the emperor through the inauguration. It consists of 1029 verses in Greek, starting with 134 lines of iambic trimeter and he also wrote a poem about the hot springs at Pythia. Paul died some time between 575 and 580, bell Sex and the Civil Servant, Poems by Paul the Silentiary, tr. Graham John Wheeler J. Kostenec, K. Dark, Paul the Silentiarys description of Hagia Sophia in the light of new evidence, in Byzantinoslavica, LXIX3 supplementum. R. Macrides, P. Magdalino, The architecture of ecphrasis, construction and context of Paul the Silentiarys poem on Hagia Sophia, in Byzantine And Modern Greek Studies,12, the Occasion of Paul the Silentiarys Ekphrasis of S. Sophia. Paul the Silentiary, The Magnificence of Hagia Sophia at The Internet Medieval Sourcebook Extracts of his eulogy of the Hagia Sophia
24.
Agathias
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Agathias was a native of Myrina. A brother of Agathias is mentioned in sources, but his name has not survived. Their probable sister Eugenia is known by name, the Suda clarifies that Agathias was active in the reign of the Roman emperor Justinian I, mentioning him as a contemporary of Paul the Silentiary, Macedonius of Thessalonica and Tribonian. Agathias mentions being present in Alexandria as a law student at the time when an earthquake destroyed Berytus, the law school of Berytus had been recognized as one of the three official law schools of the empire. Within a few years, as the result of the earthquake of 551. The dating of the event to 551, as a law student, Agathias could be in his early twenties and he mentions leaving Alexandria for Constantinople shortly following the earthquake. Agathias visited the island of Kos, where he witnessed the devastation caused by the earthquake and he returned to Constantinople in 554 to finish his training, and practised as an advocatus in the courts. John of Epiphania reports that Agathias practiced his profession in the capital, evagrius Scholasticus and Nikephoros Kallistos Xanthopoulos describe Agathias as a rhetor. The Suda and a passage of John of Nikiû call him Agathias the scholastic and he is known to have served as pater civitatis of Smyrna. He is credited with constructing public latrines for the city, while Agathias mentions these buildings, he fails to mention his own role in constructing them. Myrina is known to have erected statues to honor Agathias, his father Memnonius and he seems to have been known to his contemporaries more as an advocatus and a poet. There are few mentions of Agathias as a historian, few details survive of his personal life – mainly in his extant poems. One of them tells the story of his pet cat eating his partridge, another responds to his seeing the tomb of the courtesan Lais of Corinth, implying a visit to that city, which he refers to using the poetic name Ephyra. No full account of his life survives, literature, however, was Agathias favorite pursuit, and he remains best known as a poet. Of his Daphniaca, a collection of poems in hexameter on love and romance in nine books. This work largely survives in the Greek Anthology—the edition by Maximus Planudes preserves examples not found elsewhere, Agathiass poems exhibit considerable taste and elegance. He also wrote notes on the Description of Greece of Pausanias. Almost equally valued are Agathiass Histories, which he started in the reign of Justin II and he explains his own motivation in writing it, as simply being unwilling to let the momentous events of his own times go unrecorded
25.
Theophanes the Confessor
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Saint Theophanes the Confessor was a member of the Byzantine aristocracy, who became a monk and chronicler. He is venerated on March 12 in the Eastern Orthodox Church, Theophanes was born in Constantinople of wealthy and noble iconodule parents, Isaac, imperial governor of the islands of the Black Sea, and Theodora, of whose family nothing is known. His father died when Theophanes was three years old, and the Byzantine Emperor Constantine V Copronymus subsequently saw to the boys education, Theophanes would hold several offices under this patron. He was married at the age of twelve, but convinced his wife to lead a life of virginity, in 799, after the death of his father-in-law, they separated with mutual consent to embrace the religious life. She chose a convent on an island near Constantinople, while he entered the Polychronius Monastery, located in the district of Sigiane, later, he built a monastery on his own lands on the island of Calonymus. After six years he returned to Sigriano, where he founded an abbey known by the name of the great acre and governed it as abbot. In this position of leadership, he was present at the Second General Council of Nicaea in 787, when Emperor Leo V the Armenian resumed his iconoclastic warfare, he ordered Theophanes brought to Constantinople. The Emperor tried in vain to induce him to condemn the same veneration of icons that had been sanctioned by the council, Theophanes was cast into prison and for two years suffered cruel treatment. After his release, he was banished to Samothrace in 817 and he is credited with many miracles that occurred after his death, which most likely took place on 12 March, the day he is commemorated in the Roman Martyrology. The language occupies a place midway between the ecclesiastical and the vernacular Greek. The work consists of two parts, the first giving the history, arranged according to years, the other containing chronological tables, full of inaccuracies. It seems that Theophanes had only prepared the tables, leaving vacant spaces for the proper dates, attribution, This article incorporates text from a publication now in the public domain, Mershman, Francis. This article incorporates text from a now in the public domain, Chisholm, Hugh. Endnotes, Editions of the Chronicle, Editio princeps, Jacques Goar J. P. Migne, Patrologia Graeca, J. Classen in Bonn Corpus Scriptorum Hist. Editions of the Continuation in J. P. Migne, Pair, on both works and Theophanes generally, see, C. Der Wissenschaften, Gibbons Decline and Fall of the Roman Empire, who Wrote the Chronicle of Theophanes. Byzantium and its Image, London 1984, — An editions of the Chronicle with annotations and corrections. The Chronicle of Theophanes Confessor, Byzantine and Near Eastern History AD 284–813, translated by Mango, Cyril, Scott, Roger
26.
Byzantine calendar
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The Byzantine calendar, also called Creation Era of Constantinople or Era of the World, was the calendar used by the Eastern Orthodox Church from c.691 to 1728 in the Ecumenical Patriarchate. It was also the official calendar of the Byzantine Empire from 988 to 1453, the calendar was based on the Julian calendar, except that the year started on 1 September and the year number used an Anno Mundi epoch derived from the Septuagint version of the Bible. Its year one, the date of creation, was September 1,5509 BC. It is not known who invented the World era and when, nevertheless, the first appearance of the term is in the treatise of a certain monk and priest, Georgios, who mentions all the main variants of the World Era in his work. He also already regards it as the most convenient for the Easter computus and this date underwent minor revisions before being finalized in the mid-7th century, although its precursors were developed c. By the second half of the 7th century, the Creation Era was known in Western Europe, by the late 10th century around AD988, when the era appears in use on official government records, a unified system was widely recognized across the Eastern Roman world. The era was ultimately calculated as starting on September 1, Thus historical time was calculated from the creation, and not from Christs birth, as in the west. The Eastern Church avoided the use of the Anno Domini system of Dionysius Exiguus, meanwhile, as Russia received Orthodox Christianity from Byzantium, she inherited the Orthodox Calendar based on the Byzantine Era. After the collapse of the Byzantine Empire in 1453, the era continued to be used by Russia and it was only in AD1700 that the Byzantine World Era in Russia was changed to the Julian Calendar by Peter the Great. It still forms the basis of traditional Orthodox calendars up to today, September AD2000 began the year 7509 AM. Both of these early Christian writers, following the Septuagint version of the Old Testament, the Alexandrian Era developed in AD412, was the precursor to the Byzantine Era. After the initial attempts by Hippolytus, Clement of Alexandria and others, the Alexandrine monk Panodorus reckoned 5904 years from Adam to the year AD412. This created the Alexandrian Era, whose first day was the first day of the proleptic Alexandrian civil year in progress,29 August 5493 BC, with the ecclesiastical year beginning on 25 March 5493 BC. This system presents in a sort of way the mystical coincidence of the three main dates of the worlds history, the beginning of Creation, the Incarnation. It was the first day of the year in the medieval Julian calendar, the Alexandrian Era of March 25,5493 BC was adopted by church fathers such as Maximus the Confessor and Theophanes the Confessor, as well as chroniclers such as George Syncellus. Its striking mysticism made it popular in Byzantium especially in monastic circles and it had for its basis a chronological list of events extending from the creation of Adam to the year AD627. The chronology of the writer is based on the figures of the Bible, St. John Chrysostom says in his Homily On the Cross and the Thief, that Christ, opened for us today Paradise, which had remained closed for some 5000 years. St. Isaac the Syrian writes in a Homily that before Christ, for five thousand five hundred
27.
Abutment
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In engineering, abutment refers to the substructure at the ends of a bridge span or dam whereon the structures superstructure rests or contacts. Multi-span bridges require piers to support ends of spans unsupported by abutments, Dam abutments are generally either side of a valley or gorge but may be artificial in order to support arch dams such as Kurobe Dam in Japan. The term may refer to the structure supporting one side of an arch. Also the impost or abacus of a column in classical architecture may serve as an abutment to an arch, the word derives from the verb abut, meaning to touch by means of a mutual border. An abutment may be used for the following, To transfer loads from a superstructure to its foundation elements, to resist and/or transfer self weight, lateral loads and wind loads. To support one end of an approach. Every time I drive down the road I wanna’ jerk the wheel into a Goddamn bridge abutment, in the film The Big Lebowski The Dudes car was stolen and later located by the police. The officer who found it told The Dude It was discovered last night in Van Nuys lodged against an abutment, to which The Dude responded Oh man, lodged where. Ohio Department of Transportation Fixed Bridge Abutments
28.
Arch
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An arch is a curved structure that spans a space and may or may not support weight above it. Arch may be synonymous with vault, but a vault may be distinguished as a continuous arch forming a roof, an arch is a pure compression form. It can span an area by resolving forces into compressive stresses and. This is sometimes referred to as arch action, as the forces in the arch are carried to the ground, the arch will push outward at the base, called thrust. As the rise, or height of the arch decreases, the outward thrust increases, in order to maintain arch action and prevent the arch from collapsing, the thrust needs to be restrained, either with internal ties or external bracing, such as abutments. The most common true arch configurations are the arch, the two-hinged arch. The fixed arch is most often used in reinforced concrete bridge and tunnel construction, because it is subject to additional internal stress caused by thermal expansion and contraction, this type of arch is considered to be statically indeterminate. The two-hinged arch is most often used to long spans. This type of arch has pinned connections at the base, unlike the fixed arch, the pinned base is able to rotate, allowing the structure to move freely and compensate for the thermal expansion and contraction caused by changes in outdoor temperature. However, this can result in additional stresses, so the two-hinged arch is also statically indeterminate, the three-hinged arch is not only hinged at its base, like the two-hinged arch, but at the mid-span as well. The additional connection at the mid-span allows the arch to move in two opposite directions and compensate for any expansion and contraction. This type of arch is not subject to additional stress caused by thermal change. The three-hinged arch is said to be statically determinate. It is most often used for structures, such as large building roofs. Another advantage of the arch is that the pinned bases are more easily developed than fixed ones, allowing for shallow. Arches have many forms, but all fall into three categories, circular, pointed, and parabolic. Arches can also be configured to produce vaults and arcades, Arches with a circular form, also referred to as rounded arches, were commonly employed by the builders of ancient, heavy masonry arches. Ancient Roman builders relied heavily on the arch to span large
29.
Pier (architecture)
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A pier, in architecture, is an upright support for a structure or superstructure such as an arch or bridge. Sections of structural walls between openings can function as piers, the simplest cross section of the pier is square, or rectangular, but other shapes are also common. In medieval architecture, massive circular supports called drum piers, cruciform piers, columns are a similar upright support, but stand on a round base. In buildings with sequence of bays between piers, each opening between two piers is considered a single bay, single-span bridges have abutments at each end that support the weight of the bridge and serve as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support the ends of spans between these abutments, in cold climates the upstream edge of a pier may include a starkwater to prevent accumulation of broken ice during peak snowmelt flows. The starkwater has a sharpened upstream edge sometimes called a cutwater, the cutwater edge may be of concrete or masonry, but is often capped with a steel angle to resist abrasion and focus force at a single point to fracture floating pieces of ice striking the pier. In the Arc de Triomphe, Paris the central arch and side arches are raised on four massive planar piers, the original plan by Donato Bramante for St Peters Basilica in Rome has richly articulated piers, rendered in solid black. The vaulting they support is in lines, a familiar representation convention in architectural plans. Four piers support the weight of the dome at the central crossing and these piers were found to be too small to support the weight and were changed later by Michelangelo to account for the massive weight of the dome. The piers of the four apses that project from each wall are also strong. Many niches articulate the wall-spaces of the piers, column — pillar Compound pier Pilaster Deep foundation
30.
Spillway
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A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically the riverbed of the dammed river itself. In the UK they may be known as overflow channels, spillways ensure that the water does not overflow and damage or destroy the dam. Floodgates and fuse plugs may be designed into spillways to regulate water flow, other uses of the term spillway include bypasses of dams or outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods – when the reservoir cannot hold the excess of water entering the reservoir over the amount used. In contrast, a tower is a structure used to release water on a regular basis for water supply, hydroelectricity generation. A spillway is located at the top of the reservoir pool, dams may also have bottom outlets with valves or gates which may be operated to release flood flow, and a few dams lack overflow spillways and rely entirely on bottom outlets. There are two types of spillways, controlled and uncontrolled. A controlled spillway has mechanical structures or gates to regulate the rate of flow and this design allows nearly the full height of the dam to be used for water storage year-round, and flood waters can be released as required by opening one or more gates. An uncontrolled spillway, in contrast, does not have gates, the rate of discharge is controlled only by the depth of water above the reservoirs spillway. Storage volume in the reservoir above the spillway crest can only be used for the storage of floodwater. In an intermediate type, normal level regulation of the reservoir is controlled by the mechanical gates, if inflow to the reservoir exceeds the gates capacity, an artificial channel called either an auxiliary or emergency spillway that is blocked by a fuse plug dike will operate. The fuse plug is designed to over-top and wash out in case of a large flood, the fuse plug concept is used where it would be very costly to build a spillway with capacity for the probable maximum flood. A chute spillway is a common and basic design which transfers water from behind the dam down a smooth decline into the river below. These are usually designed following an ogee curve, most often, they are lined on the bottom and sides with concrete to protect the dam and topography. They may have a device and some are thinner and multiply lined if space. In addition, they are not always intended to dissipate energy like stepped spillways, chute spillways can be ingrained with a baffle of concrete blocks but usually have a flip lip and/or dissipator basin which creates a hydraulic jump, protecting the toe of the dam from erosion. Stepped channels and spillways have been used for over 3,000 years, the steps produce considerable energy dissipation along the chute and reduce the size of the required downstream energy dissipation basin. Research is still active on the topic, with developments on embankment dam overflow protection systems, converging spillways
31.
Christianity
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Christianity is a Abrahamic monotheistic religion based on the life and teachings of Jesus Christ, who serves as the focal point for the religion. It is the worlds largest religion, with over 2.4 billion followers, or 33% of the global population, Christians believe that Jesus is the Son of God and the savior of humanity whose coming as the Messiah was prophesied in the Old Testament. Christian theology is summarized in creeds such as the Apostles Creed and his incarnation, earthly ministry, crucifixion, and resurrection are often referred to as the gospel, meaning good news. The term gospel also refers to accounts of Jesuss life and teaching, four of which—Matthew, Mark, Luke. Christianity is an Abrahamic religion that began as a Second Temple Judaic sect in the mid-1st century, following the Age of Discovery, Christianity spread to the Americas, Australasia, sub-Saharan Africa, and the rest of the world through missionary work and colonization. Christianity has played a prominent role in the shaping of Western civilization, throughout its history, Christianity has weathered schisms and theological disputes that have resulted in many distinct churches and denominations. Worldwide, the three largest branches of Christianity are the Catholic Church, the Eastern Orthodox Church, and the denominations of Protestantism. There are many important differences of interpretation and opinion of the Bible, concise doctrinal statements or confessions of religious beliefs are known as creeds. They began as baptismal formulae and were expanded during the Christological controversies of the 4th and 5th centuries to become statements of faith. Many evangelical Protestants reject creeds as definitive statements of faith, even agreeing with some or all of the substance of the creeds. The Baptists have been non-creedal in that they have not sought to establish binding authoritative confessions of faith on one another. Also rejecting creeds are groups with roots in the Restoration Movement, such as the Christian Church, the Evangelical Christian Church in Canada, the Apostles Creed is the most widely accepted statement of the articles of Christian faith. It is also used by Presbyterians, Methodists, and Congregationalists and this particular creed was developed between the 2nd and 9th centuries. Its central doctrines are those of the Trinity and God the Creator, each of the doctrines found in this creed can be traced to statements current in the apostolic period. The creed was used as a summary of Christian doctrine for baptismal candidates in the churches of Rome. Most Christians accept the use of creeds, and subscribe to at least one of the mentioned above. The central tenet of Christianity is the belief in Jesus as the Son of God, Christians believe that Jesus, as the Messiah, was anointed by God as savior of humanity, and hold that Jesus coming was the fulfillment of messianic prophecies of the Old Testament. The Christian concept of the Messiah differs significantly from the contemporary Jewish concept, Jesus, having become fully human, suffered the pains and temptations of a mortal man, but did not sin
32.
Cross
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A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other. The lines usually run vertically and horizontally, a cross of oblique lines, in the shape of the Latin letter X, is also termed a saltire in heraldic terminology. The word [[wikt, cross|crossded from Old Irish, possibly via Old Norse, ultimately from the Latin crux, stake, the English verb to cross arises from the noun c. 1200, first in the sense to make the sign of the cross, the Latin word was, however, influenced by popular etymology by a native Germanic word reconstructed as*krukjo. This word, by conflation with Latin crux, gave rise to Old French crocier, Latin crux referred to the gibbet where criminals were executed, a stake or pole, but not necessarily to intersecting or cruciform beams. The Latin word derived from the verb crucio to torture, Latin crux originally referred to the tree or stake on which criminals were crucified in the pre-imperial period. This was later specified as crux acuta or crux simplex, the method of execution may have been adopted from the Phoenicians. The addition of a bar, to which the criminal would be fastened with nails or cords. The Latin name of the cross is crux decussata, the heraldic term saltire is introduced only towards the end of the medieval period. The Greek equivalent of Latin crux stake, gibbet is σταυρός stauros stake, the letter Tau was associated with the stauros or crux, while the notion of cruciform shapes, i. e. intersecting lines, were associated with the letter Chi. The Greek term for crossing was χίασμα chiasma, from a verb χιάζω chiázō to shape like the letter Chi, Latin had the comparable decussatus shaped like the numeral ten. Also of prehistoric age are numerous variants of the cross mark, including the crux gammata with curving or angular lines. Speculation of this kind became popular in the mid- to late-19th century in the context of comparative mythology seeking to tie Christian mythology to ancient cosmological myths. Influential works in this vein included G. de Mortillet, L. Müller, W. W. Blake, Ansault, in the European Bronze Age the cross symbol appeared to carry a religious meaning, perhaps as a symbol of consecration, especially pertaining to burial. The cross sign occurs trivially in tally marks, and develops into a number symbol independently in the Roman numerals, the Chinese rod numerals and the Brahmi numerals. In the Phoenician alphabet and derived scripts, the symbol represented the phoneme /t/, i. e. the letter taw. The letter name taw means mark, presumably continuing the Egyptian hieroglyph two crossed sticks, according to W. E. Vines Expository Dictionary of New Testament Words, worshippers of Tammuz in Chaldea and thereabouts used the cross as symbol of that god. The shape of the cross, as represented by the letter T, clements contemporary Tertullian rejects the accusation that Christians are crucis religiosi, and returns the accusation by likening the worship of pagan idols to the worship of poles or stakes
33.
Apse
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In architecture, an apse is a semicircular recess covered with a hemispherical vault or semi-dome, also known as an Exedra. Smaller apses may also be in other locations, especially shrines, an apse is a semicircular recess covered with a hemispherical vault. Commonly, the apse of a church, cathedral or basilica is the semicircular or polygonal termination to the choir or sanctuary, in relation to church architecture it is generally the name given to where the altar is placed or where the clergy are seated. An apse is occasionally found in a synagogue, e. g. Maoz Haim Synagogue, the apse is separated from the main part of the church by the transept. Smaller apses are sometimes built in other than the east end. The domed apse became a part of the church plan in the early Christian era. In the Eastern Orthodox tradition, the apse is known as diaconicon. Various ecclesiastical features of which the apse may form part are drawn here, The chancel, directly to the east beyond the choir contains the High Altar. This area is reserved for the clergy, and was formerly called the presbytery. Hemi-cyclic choirs, first developed in the East, came to use in France in 470, famous northern French examples of chevets are in the Gothic cathedrals of Amiens, Beauvais and Reims. The word ambulatory refers to an aisle in the apse that passes behind the altar and choir. An ambulatory may refer to the passages that enclose a cloister in a monastery, or to other types of aisles round the edge of a church building
34.
Starling (structure)
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In architecture, a starling or, more commonly, cutwater is a defensive bulwark, usually built with pilings or bricks, surrounding the supports of a bridge or similar construction. So the cutwaters make the current of water less forceful, one problem caused by starlings is the accumulation of river debris, mud and other objects against the starlings, potentially hindering the flow. The starling has a sharpened upstream edge sometimes called the nose, the cutwater edge may be of concrete or masonry, but is often capped with a steel angle to resist abrasion and focus force at a single point to fracture floating pieces of ice striking the pier. A sloped, ice-cutting starling is known as a starkwater
35.
Epigram
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An epigram is a brief, interesting, memorable, and sometimes surprising or satirical statement. Derived from the Greek, ἐπίγραμμα epigramma inscription from ἐπιγράφειν epigraphein to write on, to inscribe, the presence of wit or sarcasm tends to distinguish non-poetic epigrams from aphorisms and adages, which may lack them. These original epigrams did the job as a short prose text might have done. Epigram became a genre in the Hellenistic period, probably developing out of scholarly collections of inscriptional epigrams. Many of the types of literary epigram look back to inscriptional contexts, particularly funerary epigram. Many sympotic epigrams combine sympotic and funerary elements – they tell their readers to drink, epigrams are also thought of as having a point – that is, the poem ends in a punchline or satirical twist. By no means do all Greek epigrams behave this way, many are simply descriptive, Greek epigram was actually much more diverse, as the Milan Papyrus now indicates. A major source for Greek literary epigram is the Greek Anthology, the Anthology includes one book of Christian epigrams as well as one book of erotic and amorous epigrams called the Μουσα Παιδικη. Roman epigrams owe much to their Greek predecessors and contemporaries, Roman epigrams, however, were often more satirical than Greek ones, and at times used obscene language for effect. Its content, of course, makes it clear how popular such poems were, Admiror, O paries, Im astonished, wall, that you havent collapsed into ruins, since youre holding up the weary verse of so many poets. However, in the world, epigrams were most often gifts to patrons or entertaining verse to be published. Authors whose epigrams survive include Catullus, who wrote both invectives and love epigrams – his poem 85 is one of the latter, nescio, sed fieri sentio, et excrucior. Maybe youd like to know why I do, I dont know, but I feel it happening, and Im crucified. Martial, however, is considered to be the master of the Latin epigram and his technique relies heavily on the satirical poem with a joke in the last line, thus drawing him closer to the modern idea of epigram as a genre. Here he defines his genre against a critic, Disce quod ignoras, non sunt longa quibus nihil est quod demere possis, sed tu, Cosconi, disticha longa facis. Learn what you dont know, one work of Marsus or learned Pedo often stretches out over a doublesided page, a work isnt long if you cant take anything out of it, but you, Cosconius, write even a couplet too long. Poets known for their epigrams whose work has been lost include Cornificia, in early English literature the short couplet poem was dominated by the poetic epigram and proverb, especially in the translations of the Bible and the Greek and Roman poets. Since 1600, two lines of verse that rhyme with each other, known as a couplet featured as a part of the longer sonnet form
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De Administrando Imperio
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De Administrando Imperio is the Latin title of a Greek work written by the 10th-century Eastern Roman Emperor Constantine VII. The Greek title of the work is Πρὸς τὸν ἴδιον υἱὸν Ρωμανόν and it is a domestic and foreign policy manual for the use of Constantines son and successor, the Emperor Romanos II. Constantine was a scholar-emperor, who sought to foster learning and education in the Eastern Roman Empire and he produced many other works, including De Ceremoniis, a treatise on the etiquette and procedures of the imperial court, and a biography of his grandfather, Basil I. De Administrando Imperio was written between 948 and 952 and it contains advice on running the ethnically-mixed empire as well as fighting foreign enemies. To this combination were added Constantines own political instructions to his son Romanus, as to the historical and geographic information, which is often confusing and filled with legends, this information is in essence reliable. The historical and antiquarian treatise, which the Emperor had compiled during the 940s, is contained in the chapters 12—40. This treatise contains traditional and legendary stories of how the surrounding the Empire came in the past to be occupied by the people living in them in the Emperors times. Chapters 1—8, 10—12 explain imperial policy toward the Pechenegs and Turks, chapter 13 is a general directive on foreign policy coming from the Emperor. Chapters 43—46 are about contemporary policy in the north-east, the guides to the incorporation and taxation of new imperial provinces, and to some parts of civil and naval administration, are in chapters 49—52. These later chapters were designed to give instructions to the emperor Romanus II. The books three similar but different accounts of the arrival of the Croats have confounded numerous historians since the 19th century. Historian Barbara M. Kreutz described the report found in the De Administrando Imperio that the Byzantines played a role in the 871 fall of the Emirate of Bari as a probable concoction. The earliest surviving copy, was made by John Doukas confidential secretary, Michael and this manuscript was copied in 1509 by Antony Eparchus, this copy known as V=codex Vaticanus-Palatinus gr. 126, has a number of notes in Greek and Latin, a third complete copy, known as F=codex Parisinus gr.2967, is itself a copy of V, which was begun by Eparchus and completed by Michael Damascene, V is undated. There is a fourth, but incomplete, manuscript known as M=codex Mutinensis gr,179, which is a copy of P made by Andrea Darmari between 1560 and 1586. Two of the manuscripts are now located in Bibliothèque Nationale in Paris, the partial manuscript is in Modena. The Greek text in its entirety was published seven times and this edition was published six years later with no changes. The language Constantine uses is rather straightforward High Medieval Greek, somewhat more elaborate than that of the Canonic Gospels, the only difficulty is the regular use of technical terms which, being in standard use at the time, may present prima facie hardships to a modern reader
37.
Constantine VII
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Constantine VII Porphyrogennetos or Porphyrogenitus, the Purple-born, was the fourth Emperor of the Macedonian dynasty of the Byzantine Empire, reigning from 913 to 959. He was the son of the emperor Leo VI and his wife, Zoe Karbonopsina, and the nephew of his predecessor. Constantine VII is best known for his four books, De Administrando Imperio, De Ceremoniis, De Thematibus and his nickname alludes to the Purple Room of the imperial palace, decorated with porphyry, where legitimate children of reigning emperors were normally born. Constantine was also born in this room, although his mother Zoe had not been married to Leo at that time, nevertheless, the epithet allowed him to underline his position as the legitimized son, as opposed to all others who claimed the throne during his lifetime. Sons born to a reigning Emperor held precedence in the Eastern Roman line of succession over elder sons not born in the purple, Constantine was born at Constantinople, an illegitimate son born before an uncanonical fourth marriage. To help legitimize him, his mother gave birth to him in the Purple Room of the palace, hence his nickname Porphyrogennetos. He was symbolically elevated to the throne as a child by his father. In June 913, as his uncle Alexander lay dying, he appointed a regency council for Constantine. Following Alexanders death, the new and shaky regime survived the attempted usurpation of Constantine Doukas, Patriarch Nicholas was presently forced to make peace with Tsar Simeon of Bulgaria, whom he reluctantly recognized as Bulgarian emperor. Because of this concession, Patriarch Nicholas was driven out of the regency by Constantines mother Zoe. She was no more successful with the Bulgarians, who defeated her main supporter, in 919 she was replaced as regent by the admiral Romanos Lekapenos, who married his daughter Helena Lekapene to Constantine. Romanos used his position to advance to the ranks of basileopatōr in May 919, to kaisar in September 920, thus, just short of reaching nominal majority, Constantine was eclipsed by a senior emperor. Nevertheless, he was an intelligent young man with a large range of interests. Romanos kept and maintained power until 944, when he was deposed by his sons, Romanos spent the last years of his life in exile on the Island of Prote as a monk and died on June 15,948. With the help of his wife, Constantine VII succeeded in removing his brothers-in-law, several months later, Constantine VII crowned his own son Romanos II co-emperor. In 949 Constantine launched a new fleet of 100 ships against the Arab corsairs hiding in Crete, but like his fathers attempt to retake the island in 911, on the Eastern frontier things went better, even if with alternate success. In 949 the Byzantines conquered Germanicea, repeatedly defeated the enemy armies, but in 953 the Hamdanid amir Sayf al-Daula retook Germanicea and entered the imperial territory. An Arab fleet was destroyed by Greek fire in 957
38.
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
39.
Medes
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The Medes were an ancient Iranian people who lived in an area known as Media and who spoke the Median language. This allowed new peoples to pass through and settle, in addition Elam, the dominant power in Iran, was suffering a period of severe weakness, as was Babylonia to the west. During the reign of Sinsharishkun the Assyrian empire, which had been in a state of constant civil war since 626 BC, subject peoples, such as the Medes, Babylonians, Chaldeans, Egyptians, Scythians, Cimmerians, Lydians and Arameans quietly ceased to pay tribute to Assyria. The Median kingdom was conquered in 550 BC by Cyrus the Great. However, nowadays there is doubt whether a united Median empire ever existed. There is no evidence and the story of Herodotus is not supported by sources from the Neo-Assyrian Empire nor the Neo-Babylonian Empire. A few archaeological sites and textual sources provide a documentation of the history. Apart from a few names, the language of the Medes is unknown. The Medes had an Ancient Iranian Religion with a priesthood named as Magi, later during the reigns of the last Median kings, the reforms of Zoroaster spread into western Iran. Besides Ecbatana, the other existing in Media were Laodicea. The fourth city of Media was Apamea, near Ecbatana, whose location is now unknown. According to the Histories of Herodotus, there were six Median tribes, Thus Deioces collected the Medes into a nation, now these are the tribes of which they consist, the Busae, the Paretaceni, the Struchates, the Arizanti, the Budii, and the Magi. The six Median tribes resided in Media proper, the triangular shaped area between Ecbatana, Rhagae and Aspadana, in modern Iran, that is the area between Tehran, Isfahan and Hamadan. Of the Median tribes, the Magi resided in Rhaga, modern Tehran and it was a type of sacred caste, which ministered to the spiritual needs of the Medes. The Paretaceni tribe resided in and around Aspadana, modern Isfahan, the Arizanti lived in and around Kashan, the Struchates and the Budii lived in villages in the Median triangle. The original source for different words used to call the Median people, their language, the meaning of this word is not precisely established. The Median people are mentioned by name in many ancient texts. According to the Histories of Herodotus, The Medes were called anciently by all people Aryans, but when Medea, such is the account which they themselves give
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JSTOR
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JSTOR is a digital library founded in 1995. Originally containing digitized back issues of journals, it now also includes books and primary sources. It provides full-text searches of almost 2,000 journals, more than 8,000 institutions in more than 160 countries have access to JSTOR, most access is by subscription, but some older public domain content is freely available to anyone. William G. Bowen, president of Princeton University from 1972 to 1988, JSTOR originally was conceived as a solution to one of the problems faced by libraries, especially research and university libraries, due to the increasing number of academic journals in existence. Most libraries found it prohibitively expensive in terms of cost and space to maintain a collection of journals. By digitizing many journal titles, JSTOR allowed libraries to outsource the storage of journals with the confidence that they would remain available long-term, online access and full-text search ability improved access dramatically. Bowen initially considered using CD-ROMs for distribution, JSTOR was initiated in 1995 at seven different library sites, and originally encompassed ten economics and history journals. JSTOR access improved based on feedback from its sites. Special software was put in place to make pictures and graphs clear, with the success of this limited project, Bowen and Kevin Guthrie, then-president of JSTOR, wanted to expand the number of participating journals. They met with representatives of the Royal Society of London and an agreement was made to digitize the Philosophical Transactions of the Royal Society dating from its beginning in 1665, the work of adding these volumes to JSTOR was completed by December 2000. The Andrew W. Mellon Foundation funded JSTOR initially, until January 2009 JSTOR operated as an independent, self-sustaining nonprofit organization with offices in New York City and in Ann Arbor, Michigan. JSTOR content is provided by more than 900 publishers, the database contains more than 1,900 journal titles, in more than 50 disciplines. Each object is identified by an integer value, starting at 1. In addition to the site, the JSTOR labs group operates an open service that allows access to the contents of the archives for the purposes of corpus analysis at its Data for Research service. This site offers a facility with graphical indication of the article coverage. Users may create focused sets of articles and then request a dataset containing word and n-gram frequencies and they are notified when the dataset is ready and may download it in either XML or CSV formats. The service does not offer full-text, although academics may request that from JSTOR, JSTOR Plant Science is available in addition to the main site. The materials on JSTOR Plant Science are contributed through the Global Plants Initiative and are only to JSTOR
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Ancient Roman architecture
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Ancient Roman architecture adopted the external language of classical Greek architecture for the purposes of the ancient Romans, but differed from Greek buildings, becoming a new architectural style. The two styles are considered one body of classical architecture. Roman architecture flourished in the Roman Republic and even more so under the Empire and it used new materials, particularly concrete, and newer technologies such as the arch and the dome to make buildings that were typically strong and well-engineered. Large numbers remain in some form across the empire, sometimes complete, Roman Architecture covers the period from the establishment of the Roman Republic in 509 BC to about the 4th century AD, after which it becomes reclassified as Late Antique or Byzantine architecture. Almost no substantial examples survive from before about 100 BC, and most of the major survivals are from the later empire, after about 100 AD. They moved from trabeated construction mostly based on columns and lintels to one based on walls, punctuated by arches. The classical orders now became largely decorative rather than structural, except in colonnades, however, they did not feel entirely restricted by Greek aesthetic concerns, and treated the orders with considerable freedom. Innovation started in the 3rd or 2nd century BC with the development of Roman concrete as a readily available adjunct to, or substitute for, stone, more daring buildings soon followed, with great pillars supporting broad arches and domes. The freedom of concrete also inspired the colonnade screen, a row of decorative columns in front of a load-bearing wall. In smaller-scale architecture, concretes strength freed the floor plan from rectangular cells to a more free-flowing environment, factors such as wealth and high population densities in cities forced the ancient Romans to discover new architectural solutions of their own. The use of vaults and arches, together with a knowledge of building materials. Examples include the aqueducts of Rome, the Baths of Diocletian and the Baths of Caracalla and these were reproduced at a smaller scale in most important towns and cities in the Empire. Some surviving structures are almost complete, such as the walls of Lugo in Hispania Tarraconensis. The administrative structure and wealth of the empire made possible very large even in locations remote from the main centres, as did the use of slave labour. Especially under the empire, architecture often served a function, demonstrating the power of the Roman state in general. The influence is evident in many ways, for example, in the introduction and use of the Triclinium in Roman villas as a place, Roman builders employed Greeks in many capacities, especially in the great boom in construction in the early Empire. The Roman Architectural Revolution, also known as the Concrete Revolution, was the use in Roman architecture of the previously little-used architectural forms of the arch, vault. For the first time in history, their potential was fully exploited in the construction of a range of civil engineering structures, public buildings
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Roman engineering
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Romans are famous for their advanced engineering accomplishments, although some of their own inventions were improvements on older ideas, concepts and inventions. Technology for bringing running water into cities was developed in the east, the architecture used in Rome was strongly influenced by Greek and Etruscan sources. Roads were common at time, but the Romans improved their design. Moreover, their contributions were described in detail by authors such as Vitruvius, Frontinus and Pliny the Elder, so there is a printed record of their many inventions. 1,000 cubic metres of water were brought into Rome by 14 different aqueducts each day, per capita water usage in ancient Rome matched that of modern-day cities like New York City or modern Rome. Most water was for use, such as baths and sewers. De aquaeductu is the two volume treatise on 1st century aqueducts of Rome, written by Frontinus. The aqueducts could stretch from 10–100 km long, and typically descended from an elevation of 300 m above sea level at the source, Roman engineers used inverted siphons to move water across a valley if they judged it impractical to build a raised aqueduct. The Roman legions were largely responsible for building the aqueducts, maintenance was often done by slaves. The Romans were among the first civilizations to harness the power of water and they built some of the first watermills outside of Greece for grinding flour and spread the technology for constructing watermills throughout the Mediterranean region. It is known that they were capable of building and operating mining equipment such as crushing mills. Large diameter vertical wheels of Roman vintage, for raising water, have been excavated from the Rio Tinto mines in Southwestern Spain, Roman bridges were among the first large and lasting bridges ever built. They were built with stone, employing the arch as basic structure, built in 142 BC, the Pons Aemilius, later named Ponte Rotto is the oldest Roman stone bridge in Rome, Italy. They were normally at least 18 meters above the body of water, an example of temporary military bridge construction are the two Caesars Rhine bridges. The Romans built many dams for water collection, such as the Subiaco dams, one of the Subiaco dams was reputedly the highest ever found or inferred. They built 72 dams in Spain, such as those at Mérida, at one site, Montefurado in Galicia, they appear to have built a dam across the river Sil to expose alluvial gold deposits in the bed of the river. The site is near the spectacular Roman gold mine of Las Medulas, tanks for holding water are also common along aqueduct systems, and numerous examples are known from just one site, the gold mines at Dolaucothi in west Wales. Masonry dams were common in North Africa for providing a water supply from the wadis behind many settlements
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Chesters Bridge
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Chesters Bridge was a Roman bridge over the River North Tyne at Chollerford, Northumberland, England, and adjacent to Chesters Roman fort on Hadrians Wall. The fort, mentioned in the Notitia Dignitatum, and now identified with the fort found at Chesters, was known as Cilurnum or Cilurvum, in 2016, public access to Chesters Roman bridge abutments was suspended due to flood damage. The remains of the bridge on the east bank of the River North Tyne are approached along a footpath from near Chollerford Bridge and these remains were first located in 1860. They form one of the most impressive and massive structures to be seen on Hadrians Wall. An early inscription on a dedicated to Disciplina, found in 1978, indicates the earliest known military presence was a wing of cavalry. There were at least two bridges on this spot, the first, less massive than its successor, was probably contemporary with the construction of the Wall in AD 122-4. It crossed the river on a series of at least eight hexagonal stone piers about 13 feet apart, the overall length of the bridge between abutments was 200 feet. The masonry appears to have been plain but substantial, and the surviving hexagonal pier bears traces of dovetail cramps of iron set in lead which would have held the stones tightly together. The second bridge was far more massive and the new eastern abutment was a far more massive affair than before, the lewis-holes widen as they penetrate. The lewis consisted of a wedge which, after being inserted in the hole, was widened out to lock into it by the insertion of a strip of metal between the two halves of the wedge. The hook of the crane was passed through the head of the lewis. From this solid abutment there sprang an elegant bridge with four arches supported on three substantial river piers,34 feet apart and its overall length was 189 feet and was intended to take a road carriageway. This second bridge seems to date from the early 3rd century, there is no evidence for any further repair or alteration to the bridge after that date. There is a fertility symbol carved into the northern face of the eastern abutment. However his son John Clayton, an antiquarian, removed all his fathers work, exposing the fort, excavating. John Clayton also made excavations at Housesteads Fort, Carrawburgh Mithraic Temple, Cilurnum Chollerford Bridge Hadrians Wall Low Brunton Petrosomatoglyph Male fertility symbol Roman bridge List of Roman bridges
Media related to Sangarius Bridge at Wikimedia Commons
