Cultural remains at Jerimalai on the eastern tip of East Timor have been dated to 42,000 years ago, making that location one of the oldest known sites of modern human activity in Maritime Southeast Asia. Descendants of at least three waves of migration are believed still to live in East Timor. The first is described by anthropologists as people of the Veddo-Australoid type. Around 3000 BC, a second migration brought Melanesians. The earlier Veddo-Australoid peoples withdrew at this time to the mountainous interior. Finally, proto-Malays arrived from south China and north Indochina. Hakka traders are among those descended from this final group.