May 7 (UPI) -- On this date in history: In 1718, the French established the city of New Orleans on land inhabited by the Chitimacha tribe. The actual date of the city's founding is unknown, but the anniversary is traditionally observed May 7. In 1789, the first U.S. presidential inaugural ball, celebrating the inauguration of George Washington, was conducted in New York City. In 1824, Beethoven's Ninth Symphony was performed for the first time. In 1913, homemade bombs found under the bishop's