In what year was the fort that George Armistead commanded during the Battle of Baltimore first built?
George Armistead: George Armistead (April 10, 1780 – April 25, 1818) was an American military officer who served as the commander of Fort McHenry during the Battle of Baltimore in the War of 1812. Fort McHenry:  It was first built in 1798 and was used continuously by U.S. armed forces through World War I and by the Coast Guard in World War II.
1798