Source Data Reference for:
City = Cologne
Time = 1750
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Cologne | 1750 | 44,000 | Tertius Chandler | Four thousand years of urban growth | p22 | ||
| Cologne | 1750 | 43,000 | Jan De Vries | European urbanization 1500-1800 | p273 | ||
| Cologne | 1750 | 44,000 | Paul Bairoch | La population des villes europeennes de 800 a 1850 |