1. On September 4, 1792, the state of Kentucky was admitted to the United States. The celebration of statehood took place in Danville, Kentucky with a parade and a 15-gun salute.

2. In 1861, during the Civil War, Confederate General Leonidas Polk established Camp Boone near Bowling Green, Kentucky. This camp was used as a staging ground for Confederate forces in Kentucky.

3. On September 4, 1935, Mammoth Cave National Park was officially dedicated in Kentucky. Mammoth Cave is the world's longest known cave system, with more than 400 miles of explored passages.

4. In 1950, Kentucky farmer and preacher Harry Moore was killed in an automobile accident. Moore was best known for his eccentric and controversial beliefs, including his belief in a flat earth.

5. On September 4, 2006, Kentucky Senate President David L. Williams announced that he would not run for Governor of Kentucky in the 2007 election. Williams had been seen as a leading contender for the nomination, but cited personal reasons for his decision.