The Polynesian people are considered to be by linguistic, archaeological and human genetic ancestry a subset of the sea-migrating Austronesian people and tracing Polynesian languages places their prehistoric origins in the Malay Archipelago, and ultimately, in Taiwan. Between about 3000 and 1000 BCE speakers of Austronesian languages began spreading from Taiwan into Island South-East Asia, as tribes whose natives were thought to have arrived through South China about 8,000 years ago to the edges of western Micronesia and on into Melanesia, although they are different from the Han Chinese who now form the majority of people in China and Taiwan. There are three theories regarding the spread of humans across the Pacific to Polynesia. These are outlined well by Kayser "et al." (2000) and are as follows: