Community-living houses are known from many aboriginal cultures not only on southeastasian islands. Also on the Sumatra Nassau Island the Mentawai-Aboriginees use those constructions traditionally as tribal or family living site as ilustrated here already in Meyers Konversations-Lexikon from 1908

PULAU PAGAI UTARA - PULAU PAGAI SELATAN

NASSAU ISLAND (MENTAWAI)

Historic References in SUMATRA to the ancient Nassau County

Orange - Nassau Project

Dipl. Biol. Peter Ulrich Zanger