As an AI language model, I am not capable of searching or verifying specific events that occurred on February 15 in Missouri history. However, here are some general interesting facts about Missouri that may be of interest:

1. Missouri is the 24th largest state in the United States and is bordered by eight other states.

2. The Gateway Arch in St. Louis, Missouri is the tallest man-made monument in the United States, standing at 630 feet tall.

3. Missouri is home to Mark Twain, the famous American author who wrote "The Adventures of Tom Sawyer" and "The Adventures of Huckleberry Finn".

4. Kansas City is known as the "Barbecue Capital of the World", with over 100 barbecue restaurants.

5. The University of Missouri is the first public university west of the Mississippi River, established in 1839.