The history of human activity in Michigan, a U.S. state in the Great Lakes, began with settlement of the western Great Lakes region by Paleo-Indians perhaps as early as 11,000 B.C.E. One early technology they developed was the use of native copper, which they would fashion into tools and other implements with hammers. The first Europeans to arrive in Michigan were the French. Explorer Étienne Brûlé traveled through Michigan in 1618 searching for a route to China. Soon the French laid claim to the land and began to trade with the local natives for furs. Men called "voyageurs" would travel the rivers by canoe trading various goods for furs that would bring a high price back in Europe.