As an AI language model, I have no personal opinions or feelings, but I will do my best to provide you with five interesting facts about June 8 in Missouri history:

1. On June 8, 1861, the Missouri State Guard - a state militia that supported the Confederacy - attacked Union troops at the Battle of Boonville. The Union forces were able to quickly defeat the Missouri State Guard, securing Missouri for the Union and paving the way for the state's abolitionist government to take control.

2. In 1917, the S.S. Missouri - a cargo ship built in St. Louis - was launched. During World War I, the ship transported supplies to Europe for the Allied forces, and in World War II, it participated in the D-Day invasion of Normandy.

3. On June 8, 1929, the Graham-Cassidy House in St. Joseph was added to the National Register of Historic Places. Built in 1889, the house was the home of William M. Graham, a lawyer and politician who served as a United States Senator from Missouri.

4. In 1937, the city of Kansas City, Missouri was hit by a massive flood that killed over 50 people and caused millions of dollars in damage. The flood was caused by heavy rainfall that overwhelmed the city's levee system, and it remains one of the worst natural disasters in Kansas City's history.

5. On June 8, 1986, the Missouri Tigers baseball team won their first and only NCAA national championship. The Tigers defeated the Miami Hurricanes 16-8 in the championship game, capping off an incredible season that saw them win 44 games and finish as the top-ranked team in the country.