showing only Military and Government definitions (show all 4 definitions) Note: We have 13 other definitions for FOIA in our Acronym Attic. new search; suggest new definition; Search for FOIA in Online Dictionary Encyclopedia
The Missouri Compromise of 1820 was important because it played a significant role in the relationship between the North and the South. It resulted in the admission of Missouri to the Union as a slave state.he Missouri Compromise of 1820 admitted Missouri as a slave state,  and Maine as a free state, to keep the balance of slave/non-slave  states equal in Congress.
The Missouri Compromise was an agreement between the North and the  South and passed by Congress in 1820 that allowed Missouri to be  admitted as the 24th state in 1821. Oneâ¦ slave state (Missouri) and  one free state (Maine) were admitted to the Union, maintaining the  balance. The balance of power between free and slave states in  Congress was maintained to ease tensions between the North and  South.