Native American. Native Americans, also known as American Indians, Indigenous Americans and other terms, are the indigenous peoples of the United States, except Hawaii and territories of the United States.
   More than 570 federally recognized tribes live within the US, about half of which are associated with Indian reservations. The term American Indian excludes Native Hawaiians and some Alaskan Natives, while Native Americans are American Indians, plus Alaska Natives of all ethnicities.
   The US Census does not include Native Hawaiians or Chamorro, instead being included in the Census grouping of Native Hawaiian and other Pacific Islander. The ancestors of living Native Americans arrived in what is now the United States at least 15,000 years ago, possibly much earlier, from Asia via Beringia.
   A vast variety of peoples, societies and cultures subsequently developed. Native Americans were greatly affected by the European colonization of the Americas, which began in 1492, and their population declined precipitously mainly due to introduced diseases as well as warfare, including biological warfare, territorial confiscation and slavery.
   After its creation, the United States, as part of its policy of settler colonialism, waged war and perpetrated massacres against many Native American peoples, removed them from their ancestral lands, and subjected them to one-sided treaties and to discriminatory governm
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