1. On December 10, 1864, a skirmish between Union and Confederate forces took place in Newtonia, Missouri. The Union forces were led by Major General James G. Blunt and the Confederates by Major General Sterling Price. The Union forces were able to repel the Confederate advance and hold their position.

2. December 10, 1941, marked the day when Missouri Governor Forrest C. Donnell declared a state of emergency in response to the attack on Pearl Harbor. The state of emergency allowed for increased measures of security and the mobilization of troops in Missouri.

3. The Missouri State Capitol building in Jefferson City was completed on December 10, 1917, after eight years of construction. The building's dome is 238 feet tall and is one of the largest in the United States.

4. On December 10, 1936, the United States Supreme Court heard arguments in the case of Missouri ex rel. Gaines v. Canada. The case challenged the state's policy of providing separate but equal educational opportunities for African American students. The court's ruling in favor of Gaines would set a precedent for the desegregation of schools in the United States.

5. In 1817, the State of Missouri was admitted to the Union as the 24th state. Its capital was first located in St. Charles, then moved to St. Louis, and finally settled in Jefferson City in 1826. Today, Missouri is known for its diverse geography, including the Ozark Mountains, the Mississippi River, and the Gateway Arch in St. Louis.