PLEASE HELP QUICK i had to create a top five list on the westward expansions, and my number one is the Missouri compromise, and its asking why did the Missouri compromise have the biggest impact.. please tell me why

Why was the Missouri Compromise important?

Missouri Compromise, (1820), in U.S. history, 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 (1821). It marked the beginning of the prolonged sectional conflict over the extension of slavery that led to the American Civil War.

Explanation:

The Missouri compromise had a huge impact because it  marked the beginning of the prolonged sectional conflict, over the extension of slavery and it led to American Civil War, which cause a lot of problems and many deaths.

Explanation:

where is the picture?