The city of Constantinople was founded by Roman emperor Constantine I in 324 CE and it acted as the capital of the Eastern Roman Empire, or Byzantine Empire as it has later become known, for over 1,000 years.
The Byzantines had catapults and Greek Fire, the highly inflammable liquid which could be sprayed under pressure from ships or walls to torch an enemy, but the technology of warfare had moved on and the Theodosian Walls were about to get their sternest ever tested.
