In the late 18th century, a number of people speculated on the origins of the petroglyphs on Dighton Rock in Berkley, Massachusetts. Ezra Stiles, then President of Yale College, believed them to be Hebrew.[2] Antoine Court de Gébelin argued in Le Monde primitif ("The primeval World") that they commemorated an ancient visit to the East Coast by a group of sailors from Carthage (modern-day Tunisia).[3]