Source Data Reference for:

City = Szeged
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Szeged	1800	22,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Szeged	1800	23,000			Tertius Chandler	Four thousand years of urban growth	p25
Szeged	1800	23,000			Tertius Chandler	Four thousand years of urban growth	p488
Szeged	1820	26,000			Valentin Parisot	Dictionnaire geographique universelle