Lewes was the site of the first European settlement in Delaware, a whaling and trading post that Dutch settlers founded on June 3, 1631 and named Zwaanendael . The colony had a short existence, as a local tribe of Lenni Lenape Indians wiped out the 32 settlers in 1632. Lightship Overfalls, preserved as a tourist attraction. On April 5 and 6, 1813, during the War of 1812, British naval vessels led by HMS Poictiers under the command of Captain Sir John Beresford briefly and ineffectually bombarded the town. A cannonball from the bombardment is lodged in the foundation of Cannonball House, which now serves as the town's maritime museum. In 1941, the United States built Fort Miles on Cape Henlopen, immediately south of Lewes, to defend Delaware Bay and the Delaware River and the oil refineries and factories on its shores, as well as the city of Philadelphia. It was one of the largest and most heavily armed coastal fortifications ever built. Fort Miles never saw any major action; except for range practice, it only fired its guns once between its establishment and the end of World War II. Fort Miles ceased operation altogether in 1991 and was deeded to the State of Delaware.