Olszak Nowy, Fw. was formerly part of the German Empire. In the German Empire, the place was called Olszak.
The place is now called Olszak Nowy and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Olszak Stary | Russian Empire | Pultusk | 1914 |
Olszak Nowy, Fw. | Russian Empire | Pultusk | 1914 |
Olszak Stary | Poland | Pułtusk | 1919 |
Olszak Nowy, Fw. | Poland | Pułtusk | 1919 |
Olszak | German Empire | Ostenburg | 1939 |
Olszak Stary | Poland | Pułtusk | 1945 |
Olszak | Poland | Pułtusk | 1945 |
Olszak Stary | Poland | Ciechanów | 1992 |
Olszak Nowy | Poland | Ciechanów | 1992 |