Jarużyn was formerly part of the German Empire. In the German Empire, the place was called Schluchten.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jaruszyn | German Empire | Bromberg | before the Versailles Treaty |
| Parowo | German Empire | Bromberg | before the Versailles Treaty |
| Jarużyn | Poland | Bydgoszcz | after the Versailles Treaty |
| Parowo | Poland | Bydgoszcz | after the Versailles Treaty |
| Schluchten | German Empire | Bromberg | 1939 |
| Jarużyn | Poland | Bydgoszcz | 1945 |
| Parowo | Poland | Bydgoszcz | 1945 |
| Jarużyn | Poland | Bydgoszcz | 1992 |
| NN | Poland | Bydgoszcz | 1992 |