1/4 The St. Anne Parade marches down Royal St in New Orleans on Fat Tuesday, February 21. On May 7, 1718, the French established the city of New Orleans on land inhabited by the Chitimacha tribe. File Photo by AJ Sisco/UPI | License Photo 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. Advertisement In 1789, the first U.S. presidential inaugural ball, celebrating the inauguration of...