Source Data Reference for:

City = The Hague
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
The Hague	1800	39,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
The Hague	1800	37,000			Tertius Chandler	Four thousand years of urban growth	p487
The Hague	1800	38,000			Jan De Vries	European urbanization 1500-1800	p271
The Hague	1800	37,000			Tertius Chandler	Four thousand years of urban growth	p23