Source Data Reference for:

City = Hamburg
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Hamburg	1780	100,000	passed for the 1st time		Tertius Chandler	Four thousand years of urban growth	p541
Hamburg	1800	125,000	"in top 40 hence over 125,000"		Tertius Chandler	Four thousand years of urban growth	p559
Hamburg	1800	117,000			Tertius Chandler	Four thousand years of urban growth	p23
Hamburg	1800	117,000			Tertius Chandler	Four thousand years of urban growth	p485
Hamburg	1800	100,000			Jan De Vries	European urbanization 1500-1800	p273
Hamburg	1800	130,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Hamburg	1800	130,000			Tertius Chandler	Four thousand years of urban growth	p540
Altona	1800	23,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Altona	1800	23,000			Jan De Vries	European urbanization 1500-1800	p272