Source Data Reference for:

City = Izmir
Time = 1500

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Smyrna	1500	30,500	"btw 30,000 & 31,000"		Tertius Chandler	Four thousand years of urban growth	p514
Smyrna	1502	1,500		on century after Tamerlane sack of 1402	Colin McEvedy	Cities of the Classical World	p353