Source Data Reference for:
City = Opole
Time = 1900
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Opole | 1896 | 23,000 | n/a | Gothaischer Hofkalender | |||
| Oppeln | 1900 | 30,000 | Tertius Chandler | Four thousand years of urban growth | p502 |