page_title: Constantinople
hierarchical_section_title: Constantinople
caption_attribution_description: Constantinople in Byzantine times
context_page_description: Constantinople was the capital city of the Roman Empire, the Byzantine Empire, the brief Crusader state known as the Latin Empire, and the Ottoman Empire.
  With the establishment of the Turkish Republic in 1923, the capital of Turkey was moved to Ankara, and the Greco-Roman name Constantinople was officially changed to Istanbul in 1930, by Mustafa Kemal Atatürk. This was a contraction of an earlier Greek name of the city, "εις την Πόλην". The city is still referred to as Constantinople in Greek-speaking sources. The original city is located in what is now the European side and the core of modern Istanbul.
  In 324, the ancient city of Byzantium was made the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was renamed, and dedicated on 11 May 330. From the mid-5th century to the early 13th century, Constantinople was the largest and wealthiest city in Europe.
context_section_description: Constantinople /ˌkɒnstæntɪˈnoʊpəl/ (Greek: Κωνσταντινούπολις, translit. Kōnstantinoúpolis (listen); Latin: Cōnstantīnopolis; Turkish: Kostantiniye) was the capital city of the Roman Empire (330–395), the Byzantine Empire (395–1204 and 1261–1453), the brief Crusader state known as the Latin Empire (1204–1261), and the Ottoman Empire (1453–1923).
  With the establishment of the Turkish Republic in 1923, the capital of Turkey was moved to Ankara, and the Greco-Roman name Constantinople was officially changed to Istanbul in 1930, by Mustafa Kemal Atatürk.  This was a contraction of an earlier Greek name of the city, "εις την Πόλην" ("to the city").  The city is still referred to as Constantinople (Κωνσταντινούπολη) in Greek-speaking sources. The original city is located in what is now the European side and the core of modern Istanbul.
  In 324, the ancient city of Byzantium was made the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was renamed, and dedicated on 11 May 330. From the mid-5th century to the early 13th century, Constantinople was the largest and wealthiest city in Europe. The city became famous for its architectural masterpieces, such as Hagia Sophia, the cathedral of the Eastern Orthodox Church, which served as the seat of the Ecumenical Patriarchate, the sacred Imperial Palace where the Emperors lived, the Galata Tower, the Hippodrome, the Golden Gate of the Land Walls, and opulent aristocratic palaces.  The University of Constantinople was founded in the fifth century and contained artistic and literary treasures before it was sacked in 1204 and 1453, including its vast Imperial Library which contained the remnants of the Library of Alexandria and had 100,000 volumes.  The city was the home of the Ecumenical Patriarch of Constantinople and guardian of Christendom's holiest relics such as the Crown of thorns and the True Cross.
  Constantinople was famed for its massive and complex defences.  The Theodosian Walls consisted of a double wall lying about 2 kilometres (1.2 mi) to the west of the first wall and a moat with palisades in front.  This formidable complex of defences was one of the most sophisticated of Antiquity.  The city was built intentionally to rival Rome, and it was claimed that several elevations within its walls matched the 'seven hills' of Rome. Because it was located between the Golden Horn and the Sea of Marmara the land area that needed defensive walls was reduced, and this helped it to present an impregnable fortress enclosing magnificent palaces, domes, and towers, the result of the prosperity it achieved from being the gateway between two continents (Europe and Asia) and two seas (the Mediterranean and the Black Sea). Although besieged on numerous occasions by various armies, the defences of Constantinople proved impregnable for nearly nine hundred years.
  In 1204, however, the armies of the Fourth Crusade took and devastated the city, and its inhabitants lived several decades under Latin misrule.  In 1261 the Byzantine Emperor Michael VIII Palaiologos liberated the city, and after the restoration under the Palaiologos dynasty, enjoyed a partial recovery.  With the advent of the Ottoman Empire in 1299, the Byzantine Empire began to lose territories and the city began to lose population. By the early 15th century, the Byzantine Empire was reduced to just Constantinople and its environs, along with Morea in Greece, making it an enclave inside the Ottoman Empire; after a 53-day siege the city eventually fell to the Ottomans, led by Sultan Mehmed II, on 29 May 1453, whereafter it replaced Edirne (Adrianople) as the new capital of the Ottoman Empire.
caption: Aerial view of Byzantine Constantinople and the Propontis (Sea of Marmara).
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