15
4 million
15
15 slave states and 19 free states during the American Civil War
That would be 4 Between 1820 and 1850, eight states were added to the Union: Maine (1820), Missouri (1821), Arkansas (1836), Michigan (1837), Florida (1845), Texas (1845), Iowa (1846), and Wisconsin (1848). Maine, Michigan, Iowa, and Wisconsin were free states, while Missouri, Arkansas, Florida, and Texas were slave states. This maintained the balance between free and slave states.
There are 20 free states and 15 slave states in 1850.
15
4 million
18 states were free states, 15 states were slave states 33 states overall
15
15
15 slave states and 19 free states during the American Civil War
In America there was 11 free states and 11 slave states, before the compromise.
That would be 4 Between 1820 and 1850, eight states were added to the Union: Maine (1820), Missouri (1821), Arkansas (1836), Michigan (1837), Florida (1845), Texas (1845), Iowa (1846), and Wisconsin (1848). Maine, Michigan, Iowa, and Wisconsin were free states, while Missouri, Arkansas, Florida, and Texas were slave states. This maintained the balance between free and slave states.
15 free states
There were 12 slave states after the Missouri Compromise.
If its the end of slavery then all of the states were free