1. In 1792, Kentucky became the 15th state to join the Union, marking June 1 as Kentucky's official statehood day. However, the state's observance of the holiday is traditionally celebrated on the first Saturday in June, which often falls on June 6.

2. On June 6, 1833, notorious outlaw and gunfighter Wild Bill Hickok was born in Troy Grove, Illinois. He would later gain national notoriety as a lawman and gunfighter in Kansas, before being shot and killed in Deadwood, South Dakota in 1876.

3. In 1939, the Kentucky Derby was canceled for the first time due to heavy rain, with the race eventually being rescheduled for the following day. This was only the second time in the race's history that it had been postponed - the first time was in 1901, due to a fire at the racetrack.

4. On June 6, 1944, the Allied Forces landed in Normandy, France, in what is now known as D-Day. Many Kentucky soldiers served in this historic battle, including the 101st Airborne Division, which was based at Fort Campbell.

5. The Kentucky Bourbon Festival, a celebration of the state's distilled spirit, was first held in Bardstown in 1992, and has since become one of the state's biggest annual events. The festival takes place in September, and features tastings, tours, and other events celebrating the history and culture of Kentucky's bourbon industry.