Zdrojek was formerly part of the German Empire. In the German Empire, the place was called Zdrojek.
The place is now called Zdrojek and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Zdrojek | Russian Empire | Mlava | 1914 |
Zdrojek | Poland | Mława | 1919 |
Zdrojek | German Empire | Mielau | 1939 |
Zdrojek | Poland | Działdowo | 1945 |
Zdrojek | Poland | Ciechanów | 1992 |