USS Constitution, also known as Old Ironsides, is a wooden-hulled, three-masted heavy frigate of the United States Navy. She is the world’s oldest ship of any type still afloat.[Note 1] She was launched in 1797, one of six original frigates authorized for construction by the Naval Act of 1794 and the third constructed. The name “Constitution” was among ten names submitted to President George Washington by Secretary of War Timothy Pickering in March of 1795 for the frigates that were to be constructed.