Over the millennia several different ethnic groups settled on Cipangu and Magellania. During prehistory three major groups made it their home. These can be regarded as the indigenous peoples of both continents. During late antiquity and the early middle ages, Cipangu made first contact with northeastern Eurasia and the cultures of the sinosphere, importing Buddhism and sinographic writing. During early modernity Europeans reached Magellania and then Cipangu and started colonising both continents. Among them their African and Amerindian slaves and auxiliaries as well.
Proto-Magellanians (rarely also Proto-Cipanguans) are the descendents of the first settlers that arrived on Cipangu and Magellania. Their exact origin and the age of their arrival are still in debate. Proto-Magellanians are neither culturally, linguistically nor phenotypically homogenous. There are at least six distinct language families spoken by Proto-Magellanians and several possible isolates too.
The physical appearance of Proto-Magellanians is roughly comparable to that of indigenous Australians, Papuans and Melanesians. Their appearance however still varies and face shape and skin colour are different. Some Proto-Magellanians also have naturally blonde hair, although this might also be introduced from Melanesia later on.
Cipanguans or Cipango-Siberians are the descendents of Siberian migrants that crossed the Bering strait to the Americas. They consist of two or three major subgroups, which may or may not constitute separate language families. The oldest and most distinct group are the Atmuric people, who are still found mostly in the Southwest of Cipangu and the some parts of the southern rainforests as well. Atmuric peoples may have introduced barley cultivation to Cipangu. The other group are the Ebirans, who are relatives of the Chukchi and Kamchadal peoples. Ebirans are connected to the introduction of reindeer herding and cervine domestication on Cipangu.
The third group are the Highland Cipanguans, some are believed to be related to the Ebirans, but only distantly so.
Austronesians on Magellania and Cipangu are descendents of the Lapita culture.