 Today is July the 28th, and today is your birthday. Happy birthday to you. On this date in 1778, Mary Molly Pitcher Hayes McCauley, wife of an American artilleryman, carried water to the soldiers during the Battle of Monmouth and supposedly took her husband's place at his gun if he was overcome with heat. 1894, the U.S. Congress made Labor Day a U.S. national holiday. And on this date in 1919, the Treaty of Versailles was signed, ending World War I exactly five years after it began.