NN was formerly part of the German Empire. In the German Empire, the place was called Bořim.
The place is now called NN and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bořim | Austro-Hungary | Dauba | before the Treaty of Saint-Germain |
| Bořejov | Austro-Hungary | Dauba | before the Treaty of Saint-Germain |
| Bořejov | Czechoslovakia | Dubá | after the Treaty of Saint-Germain |
| Bořim | Czechoslovakia | Dubá | after the Treaty of Saint-Germain |
| Borschim | German Empire | Dauba | 1938 |
| Bořim | German Empire | Dauba | 1938 |
| Bořejov | Czechoslovakia | Doksy | 1945 |
| Bořejov | Czechoslovakia | Česká Lípa | 1992 |
| NN | Czech Republic | Česká Lípa | 1993 |