1. USS Constitution (“Old Ironsides”)
Launched in 1797, the USS Constitution is the world’s oldest commissioned warship still afloat. Renowned for her victories during the War of 1812, especially against the HMS Guerriere, she earned the nickname ‘Old Ironsides’. Fully restored and harbored in Boston, she remains a crucial symbol of early U.S. naval power. (britannica.com)



