The Province of New Hampshire was a colony of England and later a British province in North America. The name was first given in 1629 to the territory between the Merrimack and Piscataqua rivers on the eastern coast of North America, and was named after the county of Hampshire in southern England by Captain John Mason, its first named proprietor. In 1776 the province established an independent state and government, the State of New Hampshire, and joined with twelve other colonies to form the United States.