Source Data Reference for:

City = Baghdad
Time = 0

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Seleucia	-200	200,000			George Modelski	World Cities -3000 to 2000	p55
Seleucia	-200	200,000			Tertius Chandler	Four thousand years of urban growth	p462
Seleucia	-200	200,000			Tertius Chandler	Four thousand years of urban growth	p531
Seleucia	-170	600,000	"probably meant instead of 60,000"		Tertius Chandler	Four thousand years of urban growth	p524
Seleucia	-170	60,000	probably a typo		Tertius Chandler	Four thousand years of urban growth	p524
Seleucia	-170		may have been briefly largest in the world		Tertius Chandler	Four thousand years of urban growth	p524
Seleucia	-100	300,000			George Modelski	World Cities -3000 to 2000	p55
Seleucia	1	400,000			George Modelski	World Cities -3000 to 2000	p55
Seleucia	1	300,000	about Alex&ria's size		Tertius Chandler	Four thousand years of urban growth	p97
Seleucia	50	600,000			Tertius Chandler	Four thousand years of urban growth	p99