Source Data Reference for:

City = Aachen
Time = 1850

City Year Size Size Comment Year Comment Author Title Location
Aachen1850 52,000Paul BairochLa population des villes europeennes de 800 a 1850
Aachen1850 49,000Tertius ChandlerFour thousand years of urban growthp26
Aachen1861 58,6001861/62n/aGothaischer Hofkalender