 A common practice among Austronesians in a large area of Island Southeast Asia is the use of burial jars which emerged during the Late Neolithic and flourished in the first millennium CE.They are characteristic of a region bordered by the Philippines to the north, southern Sumatra in the southwest, and Sumba and the Maluku Islands in the southeast.However, these didn't comprise a single tradition, but can be grouped into at least fourteen different traditions scattered across the islands.