1. Missouri was admitted to the Union on January 25, 1821, becoming the 24th state of the United States. The Missouri Compromise of 1820 helped to resolve tensions between slave and free states and paved the way for Missouri's admission as a slave state.
2. On January 25, 1933, construction began on the Hoover Dam on the Colorado River. The massive project employed thousands of workers, including many from Missouri who migrated west seeking employment during the Great Depression.
3. Jazz musician Miles Davis was born on January 25, 1926, in Alton, Illinois, which is located just across the Mississippi River from St. Louis. Davis went on to become one of the most influential and innovative jazz musicians of the 20th century, and his career spanned more than five decades.
4. On January 25, 1882, the Missouri Pacific Railroad completed its line from St. Louis to Kansas City. The completion of the railroad helped to spur economic development across Missouri and helped to connect the state to the rest of the country.
5. On January 25, 1991, St. Louis hosted the first ever NHL All-Star Game to be held outside of Canada. The game was held at the St. Louis Arena and featured many of the league's most talented players, including Wayne Gretzky, Brett Hull, and Mario Lemieux.