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Onondaga County, New York
The name Onondaga derives from the name of the Native American tribe who historically lived in this area at the time of European contact, one of the original Five Nations of the Haudenosaunee. They called themselves (autonym) Onoda'gega, sometimes spelled Onontakeka. The word means "People of the Hills." Sometimes the term was Onondagaono ("The People of the Hills"). The federally recognized Onondaga Nation has a 9.3 square miles (24 km2) reservation within the county, on which they have self-government.
When counties were established in New York in 1683, the present Onondaga County was part of Albany County. This was an enormous county, including the northern part of New York State as well as all of the present State of Vermont and, in theory, extending westward to the Pacific Ocean. This county was reduced in size on July 3, 1766, by the creation of Cumberland County, and further on March 16, 1770, by the creation of Gloucester County, both containing territory now in Vermont.