The history of Yukon covers the period from the arrival of Paleo-Indians through the Beringia land bridge approximately 20,000 years ago. In the 18th century, Russian explorers began to trade with the First Nations people along the Alaskan coast, and later established trade networks extending into Yukon. By the 19th century, traders from the Hudson's Bay Company were also active in the region. The region are administered as a part of the North-Western Territory until 1870, when the United Kingdom transferred the territory to Canada.