Source Data Reference for:

City = Erfurt
Time = 1600

City Year Size Size Comment Year Comment Author Title Location
Erfurt1550 18,000Jan De VriesEuropean urbanization 1500-1800p272
Erfurt1600 19,000Jan De VriesEuropean urbanization 1500-1800p272
Erfurt1600 19,000Paul BairochLa population des villes europeennes de 800 a 1850