1. Missouri became a state on March 14, 1820: On this day, Missouri officially became the 24th state in the United States. The Missouri Compromise, which allowed Missouri to enter the Union as a slave state, was passed by Congress on March 3, 1820.

2. The Great St. Louis Fire occurred on March 14, 1849: One of the largest fires in the history of the United States occurred in St. Louis, Missouri on March 14, 1849. The fire destroyed over 400 buildings and left thousands of residents homeless.

3. The Missouri Pacific Railroad was incorporated on March 14, 1849: The Missouri Pacific Railroad was one of the first railroads in the United States, and it played an important role in the growth and development of the American West.

4. The University of Missouri was founded on March 14, 1839: The University of Missouri was founded on March 14, 1839, making it the first public university west of the Mississippi River. Today, the University of Missouri is one of the largest and most respected universities in the United States.

5. The first City Charter of Kansas City was adopted on March 14, 1872: The City of Kansas City was officially incorporated on March 28, 1853, but it wasn't until March 14, 1872 that the first City Charter was adopted. This Charter defined the structure and governance of the City and established the foundation for its continued growth and development.