When Europeans first arrived in North America, the Iroquois were based in what is now the northeastern United States, primarily in what is referred to today as upstate New York west of the Hudson River and through the Finger Lakes region. Today, the Iroquois live primarily in New York, Quebec, and Ontario.
The Iroquois League has also been known as the Iroquois Confederacy. Some modern scholars now make a distinction between the League and the Confederacy. According to this interpretation, the Iroquois League refers to the ceremonial and cultural institution embodied in the Grand Council, while the Iroquois Confederacy was the decentralized political and diplomatic entity that emerged in response to European colonization. The League still exists. The Confederacy dissolved after the defeat of the British and allied Iroquois nations in the American Revolutionary War.