Which Pacific peoples contributed to the settlement of Tuvalu?

The settlement of Tuvalu involved several Pacific peoples. The initial settlers, who arrived approximately 2,000 years ago, are believed to have come from Samoa, Tokelau, Tonga, and/or Uvea.1

Subsequently, smaller numbers of people arrived from Tonga, the northern Cook Islands, Rotuma, and the Gilbert Islands. Additionally, the island of Nui was heavily settled in prehistoric times by Micronesians from the Gilbert Islands (now Kiribati). By the 18th century, all of the islands except for Niulakita had been settled.12