Question

What is Constantinople

Answer 1

Was the capital city of many empires including the Roman and Ottoman, and was Europes' wealthiest and largest city during much of the Middle Ages. It was founded by the Roman Emperor Constantine and lay across the Europe-Asia land route and the sea route from the Black Sea to the Mediterranean.

Answer 2

Constantinople is the nowadays Istanbul. It was founded by the Roman emperor Constantine I on the site of an already-existing city, Byzantium, settled in the early days of Greek colonial expansion, probably around 671-662 BC. The name means the city (Greek for polis) of Constantine. It was the capital of the vast Byzantine empire. Similarly the name Istanbul comes from the Greek "Είς την Πόλιν" which means to the city.
It fell on the 29th of May 1453 during the Byzantine and Ottoman wars from Mehmed the conqueror