From the beginning of the 3rd century BC the territory of modern Ukraine, previously defined by the Scythians of the North Pontic steppes and Hellenistic influences from the Black Sea zone, was supplemented by the Celtic culture from the west. The influence of the latter in western Ukraine is testified to by extensive archaeological evidence which indicates the classic pattern of Celtic migration/settlement….

FULL ARTICLE :

https://www.academia.edu/21918619/INTO_THE_EAST_The_Celticization_of_Western_Ukraine