Castle Clinton Artillery Cannon

Artillery cannon (one of 28 and can fire a 32-pound cannonball) on display inside Castle Clinton National Monument, Battery Park, southern tip of Manhattan.   Castle Clinton built in 1811 to protect the harbor for the impending War of 1812 and possible British invasion. Originally about 200 feet offshore but in the 1850s, landfill was used to attached it to Manhattan.  In 1817 named for Mayor DeWitt Clinton. The guns were never fired in battle.