History of the Jews in Carpathian Ruthenia
Jews settled in this small region variously called Ruthenia, Carpathian Ruthenia, Sub-Carpathian Ruthenia or simply Transcarpathia as early as the 15th century. Local rulers allowed Jewish citizens to own land and practice many trades that were precluded to them in other locations.
Source: Wikipedia — History of the Jews in Carpathian Ruthenia (CC BY-SA 4.0)