The Sawi are a tribal people of Western New Guinea, Indonesia. They were known to be cannibalistic[1] headhunters as recently as the 1950s.
Since then, many of the tribe have converted to Christianity and the world's largest circular building made strictly from un-milled poles was constructed in 1972 as a Christian meeting place by the Sawi[2]. Christian missionary Don Richardson who lived among the Sawi wrote a book about the experience called Peace Child.