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Contravallation
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 smuggl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commentaries On The Gallic War
''Commentarii de Bello Gallico'' (; ), also ''Bellum Gallicum'' (), is Julius Caesar's first-hand 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 who opposed Roman conquest. The "Gaul" to which Caesar refers 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. Concurrently, "Gaul" was also used in common parlance as a synonym for "uncouth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khan (title)
Khan (, , ) is a historic Turkic peoples, Turkic and Proto-Mongols, Mongolic title originating among nomadic tribes in the Eurasian Steppe#Divisions, Central and Eastern Eurasian Steppe to refer to a king. 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, Seljük Empire, it was the highest noble title, ranking above malik (king) and emir (prince). In the Mongol Empire it signified the ruler of a Orda (organization), horde (''ulus''), while the ruler of all the Mongols was the khagan or great khan. It is a title commonly used to signify the head of a Pashtun Pashtun tribes, tribe or clan. The title subsequently declined in importance. During the Safavid Iran, Safavid and Qajar Iran, Qajar dynasty it was the title of an army general high noble rank who was ruling a province, and in Mughal Empire, Mughal India it was a high noble rank restricted to courtiers. After the downfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Bulgarian Empire
The First Bulgarian Empire (; was a medieval 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 of Bulgaria, Asparuh, moved south to the northeastern Balkans. There they secured Byzantine Empire, Byzantine recognition of their right to settle south of the Danube by Battle of Ongal, defeatingpossibly with the help of Seven Slavic tribes, 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. As the state solidified its position in the Balkans, it entered into a centuries-long interaction, sometimes friendly and sometimes hostile, with the Byzantine Empire. Bulgaria emerged as Byzantium's chief antagonist to its north, resulting in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leo III The Isaurian
Leo III the Isaurian (; 685 – 18 June 741), also known as the Syrian, was the first List of Byzantine emperors, Byzantine emperor of the Isaurian dynasty from 717 until his death in 741. 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, along with ending the continual defeats and territorial losses the Byzantines had suffered during the 7th century. He also successfully defended the Empire against the invading Umayyads and Byzantine Iconoclasm, forbade the veneration of icons. Early life Leo III was born in Germanikeia, Commagene, which is in modern Kahramanmaraş in Turkey. His original name was Konon (). Leo’s native tongue was Syriac language, Syriac or Arabic and he was described by Theophanes the Confessor as "the Saracen-minded," although there is very little evidence that he was directly influenced by Islam. After the victory of Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walls Of Constantinople
The Walls of Constantinople (; ) are a series of defensive wall, defensive stone walls that have surrounded and protected the city of Constantinople (modern Fatih district of Istanbul) 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 ancient history, antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empires between its consecration in 330 until 1930, when it was renamed to Istanbul. Initially as New Rome, Constantinople was founded in 324 during the reign of Constantine the Great on the site of the existing settlement of Byzantium, and shortly thereafter in 330 became the capital of the Roman Empire. Following the collapse of the Western Roman Empire in the late 5th century, Constantinople remained the capital of the Eastern Roman Empire (also known as the Byzantine Empire; 330–1204 and 1261–1453), the Latin Empire (1204–1261), and the Ottoman Empire (1453–1922). Following the Turkish War of Independence, the Turkish capital then moved to Ankara. Although the city had been known as Istanbul since 1453, it was officially renamed as Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Byzantine Empire
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the fall of the Western Roman Empire in the 5th centuryAD, it endured until the fall of Constantinople to the Ottoman Empire in 1453. The term 'Byzantine Empire' was coined only after its demise; its citizens used the term 'Roman Empire' and called themselves 'Romans'. During the early centuries of the Roman Empire, the western provinces were Romanization (cultural), Latinised, but the eastern parts kept their Hellenistic culture. Constantine the Great, Constantine I () legalised Christianity and moved the capital to Constantinople. Theodosius I, Theodosius I () made Christianity the state religion and Greek gradually replaced Latin for official use. The empire adopted a defensive strategy and, throughout its remaining history, expe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umayyad Empire
The Umayyad Caliphate or Umayyad Empire (, ; ) was the second caliphate established after the death of the Islamic prophet Muhammad and was ruled by the Umayyad dynasty. Uthman ibn Affan, the third of the Rashidun caliphs, was also a member of the clan. The family established dynastic, hereditary rule with Mu'awiya I, the long-time governor of Greater Syria, who became caliph after the end of the First Fitna in 661. After Mu'awiya's death in 680, conflicts over the succession resulted in the Second Fitna, and power eventually fell to Marwan I, from another branch of the clan. Syria remained the Umayyads' main power base thereafter, with Damascus as their capital. The Umayyads continued the Muslim conquests, conquering Ifriqiya, Transoxiana, Sind, the Maghreb and Hispania (al-Andalus). At its greatest extent (661–750), the Umayyad Caliphate covered , making it one of the largest empires in history in terms of area. The dynasty was toppled by the Abbasids in 750. Survivors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliph
A caliphate ( ) is an institution or public office under the leadership of an Islamic steward with Khalifa, the title of caliph (; , ), 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 (750–1517). In the fourth major caliphate, the Ottoman Caliphate, the rulers of the Ottoman Empire claimed caliphal authority from 1517 until the Ottoman caliphate was Abolition of the Caliphate, formally abolished as part of the Atatürk's reforms, 1924 secularisation of Turkey. An attempt to preserve the title was tried, with the Sharifian Caliphate, but this caliphate fell quickly after its conquest by the Sultanate o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Constantinople (717–718)
In 717–718, Constantinople, the capital of the Byzantine Empire, was besieged by the Muslim Arabs of the Umayyad Caliphate. The campaign marked the culmination of twenty years of attacks and progressive Arab occupation of the Byzantine borderlands, while Byzantine strength was sapped by Twenty Years' Anarchy, 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, deceived them and secured the Byzantine throne for himself. After wintering in the western coastlands of Asia Minor, the Arab army crossed into Thrace in the early summer of 717 and built Investment (military), siege lines to blockade the city, which was protected by the massive Walls of Constantinople#Theodosian Walls, Theodosian Walls. The Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Jerusalem (70 CE)
The siege of Jerusalem in 70 CE was the decisive event of the First Jewish–Roman War (66–73 CE), a major rebellion against Roman rule in the province of Judaea. Led by Titus, Roman forces besieged the Jewish capital, which had become the main stronghold of the revolt. After months of fighting, they breached its defenses, destroyed the Second Temple, razed most of the city, and killed, enslaved, or displaced a large portion of its population. The fall of Jerusalem marked the effective end of the Jewish revolt and had far-reaching political, religious, and cultural consequences. In the winter of 69/70 CE, following a pause caused by the Roman succession war, the campaign in Judaea resumed as Titus led at least 48,000 troops—including four legions and auxiliary forces—back into the province. By spring, this army had encircled Jerusalem, whose population had surged with refugees and Passover pilgrims. Inside the city, rival factions led by John of Gischala, Simon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
