Birken was formerly part of the German Empire. In the German Empire, the place was called Birken.
The place is now called Brzózki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Birken | German Empire | Schubin | before the Versailles Treaty |
| Brzózki | Poland | Szubin | after the Versailles Treaty |
| Birken | German Empire | Altburgund | 1939 |
| Brzózki | Poland | Szubin | 1945 |
| Brzózki | Poland | Bydgoszcz | 1992 |