NN (Piaski) was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Piaski and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Piaski) | German Empire | Meseritz | before the Versailles Treaty |
| Piaski | Poland | Nowy Tomyśl | after the Versailles Treaty |
| NN | German Empire | Grätz (Wartheland) | 1939 |
| Piaski | Poland | Nowy Tomyśl | 1945 |
| Piaski | Poland | Zielona Góra | 1992 |