1. The first recorded hockey game in St. Louis history took place on December 11, 1887. The game was played on an outdoor rink at the Grand Avenue Skating Rink and featured teams from the St. Louis Skating Club and the St. Louis Club.

2. On December 11, 1803, Missouri officially became a territory of the United States with the ratification of the Louisiana Purchase. This event marked the beginning of Missouri's journey towards statehood.

3. The Lewis and Clark Expedition, which passed through Missouri on its way to explore the western territory of the United States, left their winter camp near St. Louis on December 11, 1803. The expedition would go on to reach the Pacific Ocean and return two years later.

4. Kansas City's Union Station, which is now a major transportation hub and museum, opened its doors for the first time on December 11, 1914. At the time, the station was the second-largest in the world, and it played an important role in connecting the Midwest to the rest of the country.

5. The 1949 Missouri Pacific Railroad wreck, which killed 33 people and injured over 100, occurred on December 11 in Houston, Missouri. The wreck, which was caused by a broken axle, remains one of the deadliest railroad accidents in US history.