1. In 1985, the National Guardsmen who killed four Kent State University students in 1970 were cleared of all charges.
On this day in 1985, the National Guard members who killed four students and wounded nine others during an anti-war protest at Kent State University in Ohio were cleared of all charges by a federal judge. The ruling was controversial, and many people believed that the guardsmen should have been held responsible for their actions.

2. In 1989, Hurricane Hugo struck Kentucky, causing widespread destruction and flooding.
Hurricane Hugo, a massive Category 4 storm, made its way inland and struck Kentucky on September 21, 1989. The storm caused widespread damage and flooding, and thousands of residents were forced to evacuate their homes. Although Kentucky is not typically a state that sees hurricanes, Hugo was so devastating that it caused significant damage even hundreds of miles from the coast.

3. On this day in 1862, the deadliest day in American history occurred during the Battle of Antietam.
The Battle of Antietam, fought in Maryland during the Civil War, was the bloodiest single-day battle in American history. More than 22,000 soldiers were killed, wounded, or missing. Although the battle did not result in a clear victory for either side, it was an important turning point in the war.

4. In 2002, the Muhammad Ali Center opened in Louisville.
The Muhammad Ali Center, a museum and cultural center dedicated to the life and legacy of the legendary boxer, opened in Louisville on September 21, 2002. The center features exhibits and interactive displays that celebrate Ali's career and activism, as well as his impact on American culture and society.

5. On this day in 1908, William F. Buckley, Jr., conservative commentator and founder of National Review, was born in New York City.
Although he was not a native of Kentucky, William F. Buckley, Jr. was an important figure in American conservative politics and media. He founded the National Review magazine in 1955, which became a key platform for conservative thought and commentary. Buckley was also a prolific writer and commentator, and his impact on American conservatism is still felt today.