Source Data Reference for:

City = Budapest
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Budapest	1800	54,000			Tertius Chandler	Four thousand years of urban growth	p23
Budapest	1800	54,000			Tertius Chandler	Four thousand years of urban growth	p486
Obuda	1800	6,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Pest	1800	25,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Buda	1800	25,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Budapest	1820	60,000			Valentin Parisot	Dictionnaire geographique universelle