This census-designated place first settled in 1623 is home to a defensive fortification built at the mouth of what river?
Kittery Point, Maine: Kittery Point is a census-designated place (CDP) in the town of Kittery, York County, Maine, United States. Kittery Point, Maine:  First settled in 1623, Kittery Point traces its history to the first seafarers who colonized the shore of what became Massachusetts Bay Colony and later the State of Maine. Fort McClary: Fort McClary is a former defensive fortification of the United States military located along the southern coast of Maine at Kittery Point. Fort McClary:  Built at the mouth of the Piscataqua River, it was used primarily throughout the 19th century to protect approaches to the harbor of Portsmouth, New Hampshire, and the U.S. naval shipyard.
i don't know