Source Data Reference for:

City = Cologne
Time = 1750

City Year Size Size Comment Year Comment Author Title Location
Cologne1750 44,000Tertius ChandlerFour thousand years of urban growthp22
Cologne1750 44,000Paul BairochLa population des villes europeennes de 800 a 1850
Cologne1750 43,000Jan De VriesEuropean urbanization 1500-1800p273