You can spend July 4 aboard the USS Constitution, the oldest commissioned ship in the US Navy. Beginning Tuesday, you can enter a lottery to be one of 150 people chosen to join the crew.You'll get a front row seat to the a 21-gun salute and learn about the ship.The lottery is open for a month.President George Washington named the 227-year-old ship after the document that defines the United States of America.The USS Constitution was undefeated in battle and destroyed or captured 33 opponents when it actively defended sea lanes from 1797 to 1855.The Navy warship earned the nickname "Old Ironsides" during the War of 1812 when British cannonballs were seen bouncing off the USS Constitution's wooden hull. The ship also played a crucial role in the Barbary Wars.On the Water: Old Ironsides Wins Battle against Time