Claimed by many to be the most frequently documented artifact in American archeology, Dighton Rock is a forty-ton boulder covered in petroglyphs in southern Massachusetts. First noted by New England colonists in 1680, the rock's markings have been debated endlessly by scholars and everyday people alike on both sides of the Atlantic. The glyphs have been erroneously assigned to an array of non-Indigenous cultures: Norsemen, Egyptians, Lost Tribes of...