Last night, the USS Constitution was shifted to Dry Dock #1 at the Charlestown Navy Yard in Boston. The ship, the world’s oldest commissioned warship afloat, will be undergoing a three year refurbishment. USS Constitution, nicknamed “Old Ironsides,” entered service in the U.S. Navy on Oct. 21, 1797 and remains a commissioned U.S. Navy warship. Since 1907, the ship has been on display opening her decks to the public. An interview with Naval History and Heritage Command Director Sam Cox.