Hello Marat24, these names for the villages and cities are from very detailed old german maps. (1:25000). In OSM There is the possibility to put down the entries into several languages to show a historical process in the mutual respect. In any places in this area you can read names in polish, german and kaschubian language. Today luckily we live in a peaceful and free Europe with the same basic values without mutual claims. See it in this kind. Greeting Klaus2003