1. Kansas celebrates its Constitution Day on September 16th each year. This day commemorates the adoption of the state constitution on September 16, 1859, which established Kansas as a free state.

2. On September 16, 1806, explorers Meriwether Lewis and William Clark's Corps of Discovery arrived in what is now Kansas. They were on their historic expedition to explore and map the western portion of the United States.

3. In 1919, the first airplane to fly over Kansas City, Kansas, made its debut on September 16. The biplane, flown by Max Bishop, was part of a show held as part of an aviation promotion for the city.

4. On September 16, 1922, Kansas became the first state to celebrate Columbus Day as a legal holiday. This was done to honor Christopher Columbus and his discovery of the New World.

5. The Kansas City Chiefs played their first home game in Kansas City, Missouri, on September 16, 1963. The team, which had formerly been the Dallas Texans, won the game against the Denver Broncos 59-7, and went on to win the AFL Championship that year.