1. The first tornado warning in history was issued on May 9, 1951, in Wichita, Kansas. The warning was issued by Air Force meteorologist Major Ernest Fawbush and Captain Robert C. Miller after they noticed unusual atmospheric conditions could lead to tornadoes.

2. May 9, 1862, marks the date of the Battle of Pottawatomie Creek, a violent conflict between abolitionist John Brown and pro-slavery forces in Franklin County. Brown led a surprise attack on pro-slavery settlers, killing five men in retaliation for the Sacking of Lawrence in 1856.

3. On May 9, 1929, Wichita's municipal airport was officially dedicated, marking the city's first designated airport. The airport, which was later renamed Wichita Dwight D. Eisenhower National Airport, grew to become the largest airport in Kansas and a major aviation hub.

4. Major League Baseball player Joe Carter was born on May 9, 1960, in Oklahoma City, but grew up in Kansas City, Kansas. Carter was a two-time All-Star and two-time World Series champion, hitting one of the most famous home runs in World Series history with his walk-off homer in Game 6 of 1993 World Series.

5. The National Agricultural Center and Hall of Fame in Bonner Springs officially opened to the public on May 9, 1960. The museum and educational center features exhibits showcasing the innovations and achievements of American agriculture, as well as honoring individuals who have made significant contributions to the field.