The Knollan tribes are the only governmental systems inhabiting Tearé Island.
The Knollans are believed to have migrated to to Tearé Island in the last Ice age when there was a land bridge. Upun arriving, they had a similar culture to the mainlanders, but due to the differences in climate, they diverged from their past on the mainland.
The Thentun tribe is the Southmost Knollan Tribe. They're life revolves around fishing and hunting as opposed to some of the more agricultural tribes. They are not warlike, and will openly trade.