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Tsarevets (fortress)
Tsarevets () is a medieval stronghold located on a hill with the same name in Veliko Tarnovo in northern Bulgaria. Tsarevets is above sea level. It served as the Second Bulgarian Empire's primary fortress and strongest bulwark between 1185 and 1393, housing the royal and the patriarchal palaces, and it is also a popular tourist attraction. History The earliest evidence of human presence on the hill dates from the 2nd millennium BC. It was settled in the 4th century, and a Byzantine city, tentatively identified with Zikideva, was constructed near the end of the 5th century, on the grounds of which the construction of the Bulgarian stronghold was begun in the 12th century. After the Bulgarian Rebellion and the establishment of the Second Bulgarian Empire with its capital in Veliko Tarnovo, the fortress became the most important one in Bulgaria, often compared with Rome and Constantinople in magnificence. In 1393, the stronghold was besieged by Ottoman forces for three months ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veliko Tarnovo
Veliko Tarnovo (, ; "Great Tarnovo") is a city in north central Bulgaria and the administrative centre of Veliko Tarnovo Province. It is the historical and spiritual capital of Bulgaria. Often referred to as the "''City of the Tsars''", Veliko Tarnovo is located on the Yantra (river), Yantra River and is famously known as the historical capital of the Second Bulgarian Empire, attracting many tourists with its unique architecture. The old part of the town is situated on three hills, Tsarevets (fortress), Tsarevets, Trapezitsa (fortress), Trapezitsa, and Sveta Gora, rising amidst the meanders of the Yantra. On Tsarevets are the palaces of the Bulgarian emperors and the Patriarchate, the Ascension Cathedral (Veliko Tarnovo), Patriarchal Cathedral, and also a number of administrative and residential edifices surrounded by thick walls. Trapezitsa is known for its many churches and as the former main residence of the nobility. During the Middle Ages, the town was among the main Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin Emperor
The Latin Emperor was the ruler of the Latin Empire, the historiographical convention for the Crusader realm, established in Constantinople after the Fourth Crusade (1204) and lasting until the city was reconquered by the Byzantine Greeks in 1261. Its name derives from its Catholic and Western European ("Latin") nature. The empire, whose official name was ''Imperium Romaniae'' (Latin: "Empire of Romania"), claimed the direct heritage of the Eastern Roman Empire, which had most of its lands taken and partitioned by the crusaders. This claim however was disputed by the Byzantine Greek successor states, the Empire of Nicaea, the Empire of Trebizond and the Despotate of Epirus. Out of these three, the Nicaeans succeeded in displacing the Latin emperors in 1261 and restored the Byzantine Empire. Latin emperors of Constantinople, 1204–1261 Latin emperors of Constantinople in exile, 1261–1383 Latin Empire was disestablished in 1261, but Latin states in Greece, also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaces In Bulgaria
A palace is a large residence, often serving as a royal residence or the home for a head of state or another high-ranking dignitary, such as a bishop or archbishop. The word is derived from the Latin name palātium, for Palatine Hill in Rome which housed the Roman Empire, Imperial residences. Most European languages have a version of the term (''palats'', ''palais'', ''palazzo'', ''palacio'', etc.) and many use it to describe a broader range of buildings than English. In many parts of Europe, the equivalent term is also applied to large private houses in cities, especially of the aristocracy. It is also used for some large official buildings that have never had a residential function; for example in French-speaking countries ''Palais de Justice'' is the usual name of important courthouses. Many historic palaces such as parliaments, museums, hotels, or office buildings are now put to other uses. The word is also sometimes used to describe an elaborate building used for public ent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castles In Bulgaria
A castle is a type of fortification, fortified structure built during the Middle Ages predominantly by the nobility or royalty and by Military order (monastic society), military orders. Scholars usually consider a ''castle'' to be the private fortified house, fortified residence of a lord or noble. This is distinct from a mansion, palace, and villa, whose main purpose was exclusively for ''pleasance'' and are not primarily fortresses but may be fortified. Use of the term has varied over time and, sometimes, has also been applied to structures such as hill forts and 19th- and 20th-century homes built to resemble castles. Over the Middle Ages, when genuine castles were built, they took on a great many forms with many different features, although some, such as curtain wall (fortification), curtain walls, arrowslits, and portcullises, were commonplace. European-style castles originated in the 9th and 10th centuries after the fall of the Carolingian Empire, which resulted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual Climate of Antarctica#Precipitation, precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the Lowest temperature recorded on Earth, lowest measured temperature on Earth, . The coastal regions can reach temperatures over in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinity Peninsula
Trinity Peninsula is the northernmost part of the Antarctic Peninsula. It extends northeastward for about 130 km (80 mi) to Cape Dubouzet from an imaginary line connecting Cape Kater on the north-west coast and Cape Longing on the south-east coast. Prime Head is the northernmost point of this peninsula. Some 20 kilometers southeast of Prime Head is Hope Bay, Antarctica, Hope Bay with the year-round Argentinian Esperanza Base. History It was first sighted on 30 January 1820 by Edward Bransfield, Master, Royal Navy, immediately after his charting of the newly discovered South Shetland Islands nearby. In the century following the peninsula's discovery, chartmakers used various names (Trinity Land, Palmer Land, and Land of Louis Philippe) for this portion of it, each name having some historical merit. The recommended name derives from "Trinity Land", given by Bransfield during 1820 in likely recognition of the Corporation of Trinity House, Britain's historical maritime pil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsarevets Buttress
Sabine Glacier () is a glacier terminating at the sea between Wennersgaard Point and Cape Kater on the northwest coast of Graham Land, Antarctica. Location The Sabine Glacier is on the Davis Coast on the west side of the Antarctic Peninsula. It drains north into the Orléans Strait to the west of Cape Kater. Lanchester Bay is to the west, Detroit Plateau to the south and Charcot Bay to the east. Name Captain Henry Foster gave the name "Cape Sabine" in 1829 to a feature lying southeast of Cape Kater but it has not been possible to identify that cape. This toponym preserves the early use of Sabine in this area. Sir Edward Sabine (1788-1883), English astronomer and geodesist, was a member of the committee which planned the 1829 voyage of Foster in the ''Chanticleer''. Features Features from south to north, include: Tsarevets Buttress . A rounded ice-covered buttress extending in N-S direction and in E-W direction, rising to [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czechoslovakia
Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland became part of Nazi Germany, while the country lost further territories to First Vienna Award, Hungary and Trans-Olza, Poland (the territories of southern Slovakia with a predominantly Hungarian population to Hungary and Zaolzie with a predominantly Polish population to Poland). Between 1939 and 1945, the state ceased to exist, as Slovak state, Slovakia proclaimed its independence and Carpathian Ruthenia became part of Kingdom of Hungary (1920–1946), Hungary, while the German Protectorate of Bohemia and Moravia was proclaimed in the remainder of the Czech Lands. In 1939, after the outbreak of World War II, former Czechoslovak President Edvard Beneš formed Czechoslovak government-in-exile, a government-in-exile and sought recognition from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vlach-Bulgarian Rebellion
__NOTOC__ The Uprising of Asen and Peter () was a revolt of Bulgarians and Vlachs living in Moesia and the Balkan Mountains, then the theme of Paristrion of the Byzantine Empire, caused by a tax increase. It began on 26 October 1185, the feast day of St. Demetrius of Thessaloniki, and ended with the restoration of Bulgaria with the creation of the Second Bulgarian Empire, ruled by the Asen dynasty. Isaac II Angelus, in order to raise money for his wedding with the daughter of King Béla III of Hungary, levied a new tax which fell heavily on the population of the Haemus Mountains. They sent two leaders (Peter and Asen) to negotiate with the emperor at Kypsella (now İpsala) in Thrace. They asked to be added to the roll of the Byzantine army and to be granted land near Haemus to provide the monetary income needed to pay the tax. This was refused, and Peter and Asen were treated roughly. Their response was to threaten revolt. After their return, many of the protesters were un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Bulgaria
The history of Bulgaria can be traced from the first settlements on the lands of modern Bulgaria to its formation as a nation-state, and includes the history of the Bulgarian people and their origin. The earliest evidence of hominid occupation discovered in what is today Bulgaria date from at least 1.4 million years ago. Around 5000 BC, a sophisticated civilization already existed which produced some of the first pottery, jewellery and golden artifacts in the world. After 3500 BC, the Thracians appeared on the Balkan Peninsula. In the late 6th century BC, parts of what is currently Bulgaria, in particular the eastern region of the country, came under the Persian Achaemenid Empire. In the 470s BC, the Thracians formed the powerful Odrysian Kingdom which lasted until 46 BC, when it was finally conquered by the Roman Empire. During the centuries, some Thracian tribes fell under ancient Macedonian and Hellenistic, and also Celtic domination. This mixture of ancient peo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word ''laser'' originated as an acronym for light amplification by stimulated emission of radiation. The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow and the optical amplifier patented by Gordon Gould. A laser differs from other sources of light in that it emits light that is coherence (physics), ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling uses such as optical communication, laser cutting, and Photolithography#Light sources, lithography. It also allows a laser beam to stay narrow over great distances (collimated light, collimation), used in laser pointers, lidar, and free-space optical communication. Lasers can also have high temporal coherence, which permits them to emit light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yantra River
The Yantra ( ) is a river in northern Bulgaria, a right tributary of the Danube. Reaching a length of 285 km, it is the seventh longest river in Bulgaria and the third longest Bulgarian tributary of the Danube. In the middle and lower course, the Yantra takes many turns forming numerous gorges. It has a high sinuosity index of 3.1, which is characteristic for meandering rivers. Its catchment spans a territory of 7,862 km2 and has a small mean slope value 4.6‰ with a mean altitude of 470 m. The city of Veliko Tarnovo, situated on several hills overlooking the river along its middle course, served as the capital of the Second Bulgarian Empire in the 12–14th centuries, and remains and important cultural, economic and tourist center in Bulgaria. Another major city on the river is Gabrovo, an early education and industrial hub of the country. Geography Course The Yantra takes its source at an altitude of 1,220 m on the northern foothills of the summit of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
