1. On September 20, 1792, the first Kentucky constitution was adopted, making Kentucky the fifteenth state to join the United States.

2. In 1861, during the Civil War, Union General William Nelson occupied Louisville, Kentucky, which would remain under Union control for the remainder of the war.

3. On September 20, 1905, the Kentucky State Fair moved from Louisville to its current location in Lexington, where it has been held annually ever since.

4. The Kentucky Derby, one of the most prestigious horse races in the world, has been held on the first Saturday in May since 1875. However, in 2020, due to the COVID-19 pandemic, the race was postponed and held on September 5, marking the first time in history that the Derby was not held on its traditional date.

5. On September 20, 2002, Louisville-born boxer Muhammad Ali was awarded the Presidential Medal of Freedom by President George W. Bush in recognition of his contributions to the Civil Rights Movement, his humanitarian efforts, and his status as one of the greatest athletes of all time.