Aboriginal title in New York refers to treaties, purchases, laws and litigation associated with land titles of aboriginal peoples of New York, in particular, to dispossession of those lands by actions of European Americans. The European purchase of lands from indigenous populations dates back to the legendary Dutch purchase of Manhattan in 1626, "the most famous land transaction of all." More than any other state, New York disregarded the Confederation Congress Proclamation of 1783 and the follow-on Nonintercourse Acts, purchasing the majority of the state directly from the Iroquois nations without federal involvement or ratification.