The first inhabitants of the archipelago arrived around 30,000–40,000 years ago.[1] They may have traveled from New Guinea, by boat across the Bismarck Sea or via a temporary land bridge, created by an uplift in the Earth's crust.Script error: No such module "Unsubst". Later arrivals included the Lapita people, the direct ancestors of the Austronesian peoples of Polynesia, eastern Micronesia, and Island Melanesia.
The passage of water between the islands of New Britain and New Ireland is called St. George's Channel after St. George's Channel in the British Isles between Wales and Ireland.
Firth, Stewart (1983). New Guinea Under the Germans. Carlton, Australia: Melbourne University Press. Template:ISBN.
Howe, K. R., Robert C. Kiste, Brij V. Lal, eds. (1994). Tides of History: The Pacific Islands in the Twentieth Century. Honolulu: University of Hawaii Press. Template:ISBN.
King, David et al. (1982). Papua New Guinea Atlas: A Nation in Transition. Bathurst, Australia: R. Brown and the University of Papua New Guinea. Template:ISBN.
Moore, Clive (2003). New Guinea: Crossing Boundaries and History. Honolulu: University of Hawaii Press. Template:ISBN.
Ryan, Peter, ed. (1972). Encyclopedia of Papua New Guinea. 3 volumes; Vol I: A – K, maps, black and white illustrations, xv + 588pp. Vol II: l – Z, maps, black and white illustrations, 589–1231pp. Vol III: Index, folding colour map in rear pocket, map, colour illustration, v + 83pp. Carlton, Australia: Melbourne University Press. Template:ISBN.