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In page Tlingit:

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Various cultures of indigenous people have continuously occupied the Alaska territory for thousands of years, leading to the Tlingit. Human culture with elements related to the Tlingit originated around 10,000 years ago near the mouths of the Skeena and Nass Rivers. The historic Tlingit's first contact with Europeans came in 1741 with Russian explorers. Spanish explorers followed in 1775. Tlingits maintained their independence but suffered from epidemics of smallpox and other infectious diseases brought by the Europeans.[1] The 1862 Pacific Northwest smallpox epidemic killed about 60% of the Mainland Tlingit and 37% of the Island Tlingit.[citation needed]