<answer>Slavs</answer> are customarily divided along geographical lines into three major subgroups: West <answer>Slavs</answer>, East <answer>Slavs</answer>, and South <answer>Slavs</answer>, each with a different and a diverse background based on unique history, religion and culture of particular Slavic groups within them. Apart from prehistorical archaeological cultures, the subgroups have had notable cultural contact with non-Slavic Bronze- and Iron Age civilisations.
Who is customarily divided along geographical lines into tree major subgroups?
Slavs