The origins of Byzantium are shrouded in legend. Tradition says that
Byzas of
Megara (a city-state near
Athens) founded the city when he sailed northeast across the
Aegean Sea. The date is usually given as 667 BCE on the authority of
Herodotus, who states the city was founded 17 years after
Chalcedon.
Eusebius, who wrote almost 800 years later, dates the founding of Chalcedon to 685/4 BCE, but he also dates the founding of Byzantium to 656 BCE (or a few years earlier depending on the edition). Herodotus' dating was later favored by
Constantine the Great, who celebrated Byzantium's 1,000th anniversary between the years 333 and 334. Byzantium was mainly a trading city due to its location at the
Black Sea's only entrance. Byzantium later conquered Chalcedon, across the Bosphorus on the Asiatic side. The city was taken by the
Persian Empire at the time of the
Scythian campaign (513 BCE) of Emperor
Darius I (r. 522–486 BCE), and was added to the administrative province of
Skudra. Though
Achaemenid control of the city was never as stable as compared to other cities in
Thrace, it was considered, alongside
Sestos, to be one of the foremost Achaemenid ports on the European coast of the Bosphorus and the
Hellespont. Byzantium was besieged by Greek forces during the
Peloponnesian War. As part of
Sparta's strategy for cutting off grain supplies to Athens during their siege of Athens, Sparta took control of the city in 411 BCE, to bring the Athenians into submission. The
Athenian military later retook the city in 408 BCE, when the Spartans had withdrawn following their settlement. After siding with
Pescennius Niger against the victorious
Septimius Severus, the city was besieged by Roman forces and suffered extensive damage in CE 196. Byzantium was rebuilt by Septimius Severus, now emperor, and quickly regained its previous prosperity. It was bound to
Perinthus during the period of Septimius Severus. After the war, Byzantium lost its city status and free city privileges, but
Caracalla persuaded Severus to restore these rights. In appreciation, the Byzantines named Caracalla an archon of their city. The strategic and highly defensible (due to being surrounded by water on almost all sides) location of Byzantium attracted
Roman Emperor Constantine I who, in CE 330, refounded it as an imperial residence inspired by Rome itself, known as
Nova Roma. Later, the city was called
Constantinople (Greek: Κωνσταντινούπολις,
Konstantinoupolis, "city of Constantine"). This combination of imperialism and location would affect Constantinople's role as the nexus between the continents of Europe and Asia. It was a commercial, cultural, and diplomatic centre and for centuries formed the capital of the
Byzantine Empire, which decorated the city with numerous monuments, some still standing today. With its strategic position, Constantinople controlled the major trade routes between Asia and Europe, as well as the passage from the
Mediterranean Sea to the
Black Sea. On May 29, 1453, the city was conquered by the
Ottoman Turks, and again became the capital of a powerful state, the
Ottoman Empire. The Turks called the city "Istanbul" (although it was not officially renamed until 1930); the name derives from the Greek phrase "στην πόλη", which means "to the city". To this day it remains the largest and most populous city in
Turkey, although
Ankara is now the national capital. == Emblem ==