Source Data Reference for:

City = Cairo
Time = 1300

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Cairo	1250	300,000			Tertius Chandler	Four thousand years of urban growth	p473
Cairo	1300	400,000			Tertius Chandler	Four thousand years of urban growth	p474
Cairo	1300	400,000			Tertius Chandler	Four thousand years of urban growth	p522
Cairo	1300	400,000			Tertius Chandler	Four thousand years of urban growth	p531
Cairo	1300	400,000			Tertius Chandler	Four thousand years of urban growth	p528
Cairo	1300	400,000			Tertius Chandler	Four thousand years of urban growth	p56
Cairo	1315		becomes largest in the world overtaking Hangchow		Tertius Chandler	Four thousand years of urban growth	p527
Cairo	1325	500,000	medieval peak		Tertius Chandler	Four thousand years of urban growth	p526
Cairo	1346	87,500	"btw 50,000 & 125,000"		Colin McEvedy	The New Penguin Atlas of Medieval History ISBN 0-14-051249-7	p89