Source Data Reference for:

City = Skopje
Time = 1600

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Skopje	1600	55,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Uskub	1600	50,000			Tertius Chandler	Four thousand years of urban growth	p539
Uskub	1600	50,000			Tertius Chandler	Four thousand years of urban growth	p20
Uskub	1600	50,000			Tertius Chandler	Four thousand years of urban growth	p515