When was the county that  Manana Island is in founded?
Manana Island (Maine): Manana Island is an island in Lincoln County, Maine, United States, lying adjacent to Monhegan island, about 10 mi off Pemaquid Point on the mainland. Lincoln County, Maine:  The county was founded in 1760 from a portion of York County, Massachusetts and named after the English city Lincoln, the birthplace of Massachusetts Bay Provincial Governor Thomas Pownall.
1760