In U. S. history, 1820 the Missouri Compromise, measure worked out between the North and the South and passed by the U. S. Congress that allowed for admission of Missouri as the 24th state. It marked the beginning of the prolonged sectional conflict over the extension of slavery that led to the American Civil War. The territory of Missouri first applied for statehood in 1817, and by early 1819 congress was considering enabling legislation that would authorize Missouri to frame a state constitution. True / False