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Nicomedia
Nicomedia (; , ''Nikomedeia''; modern İzmit) was an ancient Greece, ancient Greek city located in what is now Turkey. In 286, Nicomedia became the eastern and most senior capital city of the Roman Empire (chosen by the emperor Diocletian who ruled in the east), a status which the city maintained during the Tetrarchy system (293–324). The Tetrarchy ended with the Battle of Chrysopolis (Üsküdar#Chrysopolis, Üsküdar) in 324, when Constantine the Great, Constantine defeated Licinius and became the sole emperor. In 330 Constantine chose for himself the nearby Byzantium (which was renamed Constantinople, modern Istanbul) as the new capital of the Roman Empire. The city was incorporated into the Ottoman Empire with the victory of Sultan Orhan Gazi against the Byzantine Empire. The Byzantines managed to retake it in the aftermath of the Battle of Ankara, but it fell definitively to the Ottomans in 1419. History It was founded in 712–711 BC as a Megarian colony and was original ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ä°zmit
İzmit () is a municipality and the capital Districts of Turkey, district of Kocaeli Province, Turkey. Its area is 480 km2, and its population is 376,056 (2022). The capital of Kocaeli Province, it is located at the Gulf of İzmit in the Sea of Marmara, about east of Istanbul, on the northwestern part of Anatolia. Kocaeli Province (including rural areas) had a population of 2,079,072 inhabitants in 2022, of whom approximately 1.2 million lived in the largely urban İzmit City metro area made up of Kartepe, Başiskele, Körfez, Kocaeli, Körfez, Gölcük, Kocaeli, Gölcük, Derince and Sapanca (in Sakarya Province). Unlike other provinces in Turkey, apart from Istanbul, the whole province is included within the municipality of the metropolitan center. İzmit was known as Nicomedia () and Ólbia () in antiquity, and was the eastern and most senior capital city of the Roman Empire between 286 and 324, during the Tetrarchy introduced by Diocletian. Following Constantine the Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantine The Great
Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a Constantine the Great and Christianity, pivotal role in elevating the status of Christianity in Rome, Edict of Milan, decriminalising Christian practice and ceasing Persecution of Christians in the Roman Empire, Christian persecution. This was a turning point in the Historiography of the Christianization of the Roman Empire, Christianisation of the Roman Empire. He founded the city of Constantinople (modern-day Istanbul) and made it the capital of the Empire, which it remained for over a millennium. Born in Naissus, a city located in the Roman province, province of Moesia Superior (now Niš, Serbia), Constantine was the son of Flavius Constantius, a Roman army officer from Moesia Superior, who would become one of the four emperors of the Tetrarchy. His mother, Helena, mother of Constantin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diocletian
Diocletian ( ; ; ; 242/245 – 311/312), nicknamed Jovius, was Roman emperor from 284 until his abdication in 305. He was born Diocles to a family of low status in the Roman province of Dalmatia (Roman province), Dalmatia. As with other Illyrian emperors, Illyrian soldiers of the period, Diocles rose through the ranks of the military early in his career, serving under Aurelian and Probus (emperor), Probus, and eventually becoming a Roman cavalry, cavalry commander for the army of Emperor Carus. After the deaths of Carus and his son Numerian on a campaign in Sasanian Empire, Persia, Diocles was proclaimed emperor by the troops, taking the name "Diocletianus". The title was also claimed by Carus's surviving son, Carinus, but he was defeated by Diocletian in the Battle of the Margus. Diocletian's reign stabilized the empire and ended the Crisis of the Third Century. He initiated the process of the Roman Empire split and appointed fellow officer Maximian as ''Augustus (title), Augu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrian
Arrian of Nicomedia (; Greek: ''Arrianos''; ; ) was a Greek historian, public servant, military commander, and philosopher of the Roman period. '' The Anabasis of Alexander'' by Arrian is considered the best source on the campaigns of Alexander the Great. Scholars have generally preferred Arrian to other extant primary sources, though this attitude has changed somewhat in light of modern studies into Arrian's method. Arrian's life Arrian was born in Nicomedia (present-day İzmit), the provincial capital of Bithynia. Cassius Dio called him Flavius Arrianus Nicomediensis. Sources provide similar dates for his birth, within a few years prior to 90, 89, and 85–90 AD. The line of reasoning for dates belonging to 85–90 AD is because of Arrian being made a consul around 130 AD, and the usual age for this, during this period, being 42 years of age. (ref. pp. 312, & SYME 1958, ''ibid.''). His family was from the Greek provincial aristocracy, and his full name, ''L. F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bithynia
Bithynia (; ) was an ancient region, kingdom and Roman province in the northwest of Asia Minor (present-day Turkey), adjoining the Sea of Marmara, the Bosporus, and the Black Sea. It bordered Mysia to the southwest, Paphlagonia to the northeast along the Pontic coast, and Phrygia to the southeast towards the interior of Asia Minor. Hellenistic 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 was bequeathed to the Roman Republic in 74 BC, and became united with the Pontus region as the province of Bithynia and Pontus. In the 7th century it was incorporated into the Byzantine Opsikion theme. It became a border region to the Seljuk Empire in the 13th century, and was eventually conquered by the Ottoman Turks between 1325 and 1333. Description Several major cities sat on the fertile shores of the Propontis (which is now known as Sea of Marmara): Nicomedia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orhan Gazi
Orhan Ghazi (; , also spelled Orkhan; died 1362) was the second sultan of the Ottoman Empire from 1323/4 to 1362. He was born in Söğüt, as the son of Osman I. In the early stages of his reign, Orhan focused his energies on conquering most of northwestern Anatolia. The majority of these areas were under Byzantine rule and he won his first battle at Pelekanon against the Byzantine Emperor Andronikos III Palaiologos. Orhan also occupied the lands of the Karasids of Balıkesir and the Ahis of Ankara. A series of civil wars surrounding the ascension of the nine-year-old Byzantine emperor John V Palaiologos greatly benefited Orhan. In the Byzantine civil war of 1341–1347, the regent John VI Kantakouzenos married his daughter Theodora to Orhan and employed Ottoman warriors against the rival forces of the empress dowager, allowing them to loot Thrace. In the Byzantine civil war of 1352–1357, Kantakouzenos used Ottoman forces against John V, granting them the use of a Europea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astacus In Bithynia
Astacus (Greek ) is an ancient city in Bithynia; it was also called Olbia . Its site is located near the modern BaÅŸiskele. History There are contradictory accounts of its founding: * The ''Bibliotheca historica'' (1st century BCE) of Diodorus Siculus, Book XII, Chapter 34, states: "And while these events he Battle of Potidaeawere taking place, the Athenians founded in the Propontis a city which was given the name of Astacus". Siculus' annalistic narrative allows the founding to be dated to the year 435 BCE. * The '' Annals">annalistic narrative allows the founding to be dated to the year 435 BCE. * The ''Geographica">Annals">annalistic narrative allows the founding to be dated to the year 435 BCE. * The ''Megarians and the Athens">Athenians (), and afterwards of Doidalsos. On the other hand, Siculus mentions only the Athenians as founders, while Pomponius Mela (''De situ orbis libri III'') and Memnon of Heraclea (through Photios I of Constantinople) attributed the founding o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicomedes I Of Bithynia
Nicomedes I (; lived c. 300 BC – c. 255 BC, reigned 278 BC – c. 255 BC), second king of Bithynia, was the eldest son of Zipoetes I, whom he succeeded on the throne in 278 BC. Life He began his reign by killing two of his brothers, but the third, later called Zipoetes II, rebelled against him and managed to maintain independent sovereignty over a considerable part of Bithynia for some time. Meanwhile, Nicomedes was threatened with invasion by Antiochus I Soter, king of the Seleucid Empire, who had already made war on his father, Zipoetes I. To strengthen himself against this danger, he formed an alliance with Heraclea Pontica and, shortly afterwards, with Antigonus II Gonatas. The threatened attack passed with few casualties. Antiochus did in fact invade Bithynia, but withdrew without risking battle. It was against his brother rather than his foreign enemies that Nicomedes now called in more powerful auxiliaries and formed an alliance with the Celts, who had arrived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Licinius
Valerius Licinianus Licinius (; Ancient Greek, Greek: Λικίνιος; c. 265 – 325) was Roman emperor from 308 to 324. For most of his reign, he was the colleague and rival of Constantine I, with whom he co-authored the Edict of Milan that granted official toleration to Christians in the Roman Empire. He was finally defeated at the Battle of Chrysopolis (AD 324), and was later executed on the orders of Constantine. Early reign Born to a Dacians, Dacian peasant family in Moesia Superior, Licinius accompanied his close childhood friend and future emperor Galerius, on the Persian expedition in 298. He was trusted enough by Galerius that in 307 he was sent as an envoy to Roman Italy, Italy, to attempt to reach some sort of agreement with the usurper Maxentius. When Galerius went to deal with Maxentius personally after the death of Severus II, he left the eastern provinces in Licinius' care. Upon his return to the east Galerius elevated Licinius to the rank of ''Augustus (tit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Chrysopolis
The Battle of Chrysopolis was fought on 18 September 324 at Chrysopolis (modern Üsküdar), near Chalcedon (modern Kadıköy), between the two Roman emperors Constantine I and Licinius. The battle was the final encounter between the two emperors. After his navy's defeat in the Battle of the Hellespont, Licinius withdrew his forces from the city of Byzantium across the Bosphorus to Chalcedon in Bithynia. Constantine followed, and won the subsequent battle. This left Constantine as the sole emperor, ending the period of the Tetrarchy. Background The navy of Licinius had suffered a catastrophic defeat at the Battle of the Hellespont. His admiral, Abantus, had been outfought by Constantine's son, the caesar Crispus, despite the latter's distinctly smaller fleet. Following this naval victory, Constantine crossed over to Asia Minor. An army, under the command of Licinius' newly appointed co-emperor Martinian, was guarding the coast at Lampsacus on the Hellespont. Constantine h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrarchy
The Tetrarchy was the system instituted by Roman emperor Diocletian in 293 AD to govern the ancient Roman Empire by dividing it between two emperors, the ''augusti'', and their junior colleagues and designated successors, the ''caesares''. Initially Diocletian chose Maximian as his ''caesar'' in 285, raising him to co-''augustus'' the following year; Maximian was to govern the western provinces and Diocletian would administer the eastern ones. The role of the ''augustus'' was likened to Jupiter (mythology), Jupiter, while his ''caesar'' was akin to Jupiter's son Hercules. Galerius and Constantius Chlorus, Constantius were appointed ''caesares'' in March 293. Diocletian and Maximian retired on 1 May 305, raising Galerius and Constantius to the rank of ''augustus''. Their places as ''caesares'' were in turn taken by Valerius Severus and Maximinus Daza. The orderly system of two senior and two junior rulers endured until Constantius died in July 306, and his son Constantine the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Empire
The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of effective sole rule in 27 BC. The Western Roman Empire, western empire collapsed in 476 AD, but the Byzantine Empire, eastern empire lasted until the fall of Constantinople in 1453. By 100 BC, the city of Rome had expanded its rule from the Italian peninsula to most of the Mediterranean Sea, Mediterranean and beyond. However, it was severely destabilised by List of Roman civil wars and revolts, civil wars and political conflicts, which culminated in the Wars of Augustus, victory of Octavian over Mark Antony and Cleopatra at the Battle of Actium in 31 BC, and the subsequent conquest of the Ptolemaic Kingdom in Egypt. In 27 BC, the Roman Senate granted Octavian overarching military power () and the new title of ''Augustus (title), Augustus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
