The first residents of what is now the United States emigrated from Asia over 15,000 years ago by crossing Beringia into what is now present-day Alaska. Archaeological evidence of these peoples, the ancestors of the Native Americans, dates back to 14,000 years ago. Christopher Columbus was the first European to land in the territory of what is now the United States when he arrived in Puerto Rico in 1492. The subsequent arrival of settlers from Europe began the colonial history of the United States. The Thirteen English colonies that would become the original US states were founded along the east coast beginning in 1607. Spain, France and Russia also founded small settlements in what would become US territory.

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