Zdroje was formerly part of the German Empire. In the German Empire, the place was called Streun.
The place is now called Gajdówko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sdroje | German Empire | Schwetz | before the Versailles Treaty |
| Gaidowko | German Empire | Schwetz | before the Versailles Treaty |
| Zdroje | Poland | Świecie | after the Versailles Treaty |
| Gajdówko | Poland | Świecie | after the Versailles Treaty |
| Streun | German Empire | Tuchel | 1939 |
| Zdroje | Poland | Tuchola | 1945 |
| Gajdówko | Poland | Tuchola | 1945 |
| Zdroje | Poland | Bydgoszcz | 1992 |
| Gajdówko | Poland | Bydgoszcz | 1992 |