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Invest (military)
Investment is the military process of surrounding an enemy fort (or town) with armed forces to prevent entry or escape. It serves both to cut communications with the outside world and to prevent supplies and reinforcements from being introduced. A contravallation is a line of fortifications, built by the attackers around the besieged fortification facing towards an enemy fort to protect the besiegers from sorties by its defenders and to enhance the blockade. The contravallation can be used as a base to launch assaults against the besieged city or to construct further earthworks nearer to the city. A circumvallation may be constructed if the besieging army is threatened by a field army allied to an enemy fort. It is a second line of fortifications outside the contravallation that faces away from an enemy fort. The circumvallation protects the besiegers from attacks by allies of the city's defenders and enhances the blockade of an enemy fort by making it more difficult to smuggle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commentaries On The Gallic War
''Commentarii de Bello Gallico'' (; en, Commentaries on the Gallic War, italic=yes), also ''Bellum Gallicum'' ( en, Gallic War, italic=yes), is Julius Caesar's firsthand account of the Gallic Wars, written as a third-person narrative. In it Caesar describes the battles and intrigues that took place in the nine years he spent fighting the Celtic and Germanic peoples in Gaul that opposed Roman conquest. The "Gaul" that Caesar refers to is ambiguous, as the term had various connotations in Roman writing and discourse during Caesar's time. Generally, Gaul included all of the regions primarily inhabited by Celts, aside from the province of Gallia Narbonensis (modern-day Provence and Languedoc-Roussillon), which had already been conquered in Caesar's time, therefore encompassing the rest of modern France, Belgium, Western Germany, and parts of Switzerland. As the Roman Republic made inroads deeper into Celtic territory and conquered more land, the definition of "Gaul" shifted. Concur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tervel Of Bulgaria
Khan Tervel ( bg, Тервел) also called ''Tarvel'', or ''Terval'', or ''Terbelis'' in some Byzantine sources, was the khan of Bulgaria during the First Bulgarian Empire at the beginning of the 8th century. In 705 Emperor Justinian II named him caesar, the first foreigner to receive this title.Хан Тервел - тема за кандидат студенти He was raised a pagan like his grandfather Kubrat, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khan (title)
Khan ''khan/qan''; tr, han; Azerbaijani: ''xan''; Ottoman: ''han''; Old Turkic: ''kan''; Chinese: 汗 ''hán''; Goguryeo: 皆 ''key''; Buyeo: 加 ''ka''; Silla: 干 ''kan''; Gaya: 旱 ''kan''; Baekje: 瑕 ''ke''; Manchu: ; Persian: خان; Punjabi: ਖ਼ਾਨ; Hindustani: ख़ान or ख़ां (Devanagari), or ( Nastaleeq); Balochi: خان; Bulgarian: хан, ''khan''; Chuvash: хун, ''hun''; Arabic: خان; bn, খান or ) () is a historic Turko-Mongol title originating among nomadic tribes in the Central and Eastern Eurasian Steppe to refer to a chief or ruler. It first appears among the Rouran and then the Göktürks as a variant of khagan (sovereign, emperor) and implied a subordinate ruler. In the Seljuk Empire, it was the highest noble title, ranking above malik (king) and emir (prince). In the Mongol Empire it signified the ruler of a horde (''ulus''), while the ruler of all the Mongols was the khagan or great khan. The title subsequentl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Bulgarian Empire
The First Bulgarian Empire ( cu, блъгарьско цѣсарьствиѥ, blagarysko tsesarystviye; bg, Първо българско царство) was a medieval Bulgar- Slavic and later Bulgarian state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh, moved south to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeatingpossibly with the help of local South Slavic tribesthe Byzantine army led by Constantine IV. During the 9th and 10th century, Bulgaria at the height of its power spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea and became an important power in the region competing with the Byzantine Empire. It became the foremost cultural and spiritual centre of south Slavic Europe throughout most of the Middle Ages. As the state solidified its position in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leo III The Isaurian
Leo III the Isaurian ( gr, Λέων ὁ Ἴσαυρος, Leōn ho Isauros; la, Leo Isaurus; 685 – 18 June 741), also known as the Syrian, was Byzantine Emperor from 717 until his death in 741 and founder of the Isaurian dynasty. He put an end to the Twenty Years' Anarchy, a period of great instability in the Byzantine Empire between 695 and 717, marked by the rapid succession of several emperors to the throne. He also successfully defended the Empire against the invading Umayyads and forbade the veneration of icons. Early life Of Syrian extraction, Leo was born in Germanikeia, Commagene (modern Kahramanmaraş in Turkey). His original name was Konon ( gr, Κόνων; la, Conon or ''Cononus''). Some, including the Byzantine chronicler Theophanes, have claimed that Konon's family had been resettled in Thrace, where he entered the service of Emperor Justinian II, when the latter was advancing on Constantinople with an army of loyalist followers, and horsemen provided by T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walls Of Constantinople
The Walls of Constantinople ( el, Τείχη της Κωνσταντινουπόλεως) are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul in Turkey) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger. They saved the city, and the Byzantine Empire with it, during sieges by the Avar-Sassanian coalition, Arabs, Rus', and Bulgars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantinople
la, Constantinopolis ota, قسطنطينيه , alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth (Old Norse), Tsargrad ( Slavic), Qustantiniya ( Arabic), Basileuousa ("Queen of Cities"), Megalopolis ("the Great City"), Πόλις ("the City"), Kostantiniyye or Konstantinopolis ( Turkish) , image = Byzantine Constantinople-en.png , alt = , caption = Map of Constantinople in the Byzantine period, corresponding to the modern-day Fatih district of Istanbul , map_type = Istanbul#Turkey Marmara#Turkey , map_alt = A map of Byzantine Istanbul. , map_size = 275 , map_caption = Constantinople was founded on the former site of the Greek colony of Byzantion, which today is known as Istanbul in Turkey. , coordinates = , location = Fatih, İstanbul, Turkey , region = Marmara Region , type = Imperial city , part_of = , length = , width ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Byzantine Empire
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinople. 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 the fall of Constantinople to the Ottoman Empire in 1453. During most of its existence, the empire remained the most powerful economic, cultural, and military force in Europe. The terms "Byzantine Empire" and "Eastern Roman Empire" were coined after the end of the realm; its citizens continued to refer to their empire as the Roman Empire, and to themselves as Romans—a term which Greeks continued to use for themselves into Ottoman times. Although the Roman state continued and its traditions were maintained, modern historians prefer to differentiate the Byzantine Empire from Ancient Rome a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umayyad Empire
The Umayyad Caliphate (661–750 CE; , ; ar, ٱلْخِلَافَة ٱلْأُمَوِيَّة, al-Khilāfah al-ʾUmawīyah) was the second of the four major caliphates established after the death of Muhammad. The caliphate was ruled by the Umayyad dynasty ( ar, ٱلْأُمَوِيُّون, ''al-ʾUmawīyūn'', or , ''Banū ʾUmayyah'', "Sons of Umayyah"). Uthman ibn Affan (r. 644–656), the third of the Rashidun caliphs, was also a member of the clan. The family established dynastic, hereditary rule with Muawiya ibn Abi Sufyan, long-time governor of Greater Syria, who became the sixth caliph after the end of the First Fitna in 661. After Mu'awiyah's death in 680, conflicts over the succession resulted in the Second Fitna, and power eventually fell into the hands of Marwan I from another branch of the clan. Greater Syria remained the Umayyads' main power base thereafter, with Damascus serving as their capital. The Umayyads continued the Muslim conquests, incorporatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliph
A caliphate or khilāfah ( ar, خِلَافَة, ) is an institution or public office under the leadership of an Islamic steward with the title of caliph (; ar, خَلِيفَة , ), a person considered a political-religious successor to the Islamic prophet Muhammad and a leader of the entire Muslim world (ummah). Historically, the caliphates were polities based on Islam which developed into multi-ethnic trans-national empires. During the medieval period, three major caliphates succeeded each other: the Rashidun Caliphate (632–661), the Umayyad Caliphate (661–750), and the Abbasid Caliphate (750–1258). In the fourth major caliphate, the Ottoman Caliphate, the rulers of the Ottoman Empire claimed caliphal authority from 1517. Throughout the history of Islam, a few other Muslim states, almost all hereditary monarchies such as the Mamluk Sultanate (Cairo) and Ayyubid Caliphate, have claimed to be caliphates. The first caliphate, the Rashidun Caliphate, was established i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Constantinople (717–718)
The second Arab siege of Constantinople in 717–718 was a combined land and sea offensive by the Muslim Arabs of the Umayyad Caliphate against the capital city of the Byzantine Empire, Constantinople. The campaign marked the culmination of twenty years of attacks and progressive Arab occupation of the Byzantine borderlands, while Byzantine strength was sapped by prolonged internal turmoil. In 716, after years of preparations, the Arabs, led by Maslama ibn Abd al-Malik, invaded Byzantine Asia Minor. The Arabs initially hoped to exploit Byzantine civil strife and made common cause with the general Leo III the Isaurian, who had risen up against Emperor Theodosius III. Leo, however, tricked them and secured the Byzantine throne for himself. After wintering in the western coastlands of Asia Minor, the Arab army crossed into Thrace in early summer 717 and built siege lines to blockade the city, which was protected by the massive Theodosian Walls. The Arab fleet, which acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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