Source Data Reference for:
City = Tehran
Time = 800
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Rayy | 737 | 18,500 | "btw 15,000 & 22,000" | Colin McEvedy | The New Penguin Atlas of Medieval History ISBN 0-14-051249-7 | p41 | |
| Rayy | 800 | 100,000 | Tertius Chandler | Four thousand years of urban growth | p70 | ||
| Rayy | 800 | 100,000 | Tertius Chandler | Four thousand years of urban growth | p467 | ||
| Rayy | 800 | 100,000 | passed for the 1st time | Tertius Chandler | Four thousand years of urban growth | p541 | |
| Rayy | 800 | 200,000 | George Modelski | World Cities -3000 to 2000 | p55 |