Context: Slavs are customarily divided along geographical lines into three major subgroups: West Slavs, East Slavs, and South Slavs, 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.

Question: Who is customarily divided along geographical lines into tree major subgroups?
Answer: Slavs

Question: What three major subgroups are Slavs divided into?
Answer: West Slavs, East Slavs, and South Slavs

Question: The Slav subgroups have had notable cultural contact with what kind of civilisations?
Answer: non-Slavic Bronze- and Iron Age

Question: How many groups are non-Slavic bronze age civilisations divided into?
Answer: Unanswerable

Question: How is the West Slavs subgroup divided?
Answer: Unanswerable

Question: What group did the Slavs largely avoid?
Answer: Unanswerable

Question: What do all subgroups share?
Answer: Unanswerable