Source Data Reference for:

City = Istanbul
Time = 400

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Constantinople	330	100,000	passed for the 1st time		Tertius Chandler	Four thousand years of urban growth	p541
Constantinople	340		becomes largest in the world overtaking Rome		Tertius Chandler	Four thousand years of urban growth	p525
Constantinople	361	300,000			Tertius Chandler	Four thousand years of urban growth	p464
Constantinople	361	300,000			Tertius Chandler	Four thousand years of urban growth	p531
Constantinople	361	300,000			Tertius Chandler	Four thousand years of urban growth	p532
Constantinople	400	400,000			George Modelski	World Cities -3000 to 2000	p49
Constantinople	447	191,800			Tertius Chandler	Four thousand years of urban growth	p102