Missouri entered the US as a slave state in 1821. Later California entered the US as a free state in 1850 as the 31st state in the US.
That's exactly what happened, as specified by the Missouri Compromise of 1820!
Texas did enter the Union as a slave state. This is why it took so long between the time the Union told Texas they could become a state and the time Texas actually became a state. The debate went on about this in Congress for four years.
Maine entered as a free state.
No. The Missouri Compromise allowed Missouri to enter the Union as a slave-state, on condition that there would be no more slave-states North of the parallel that marked Missouri's Southern border.
The Missouri Compromise (1820)
None, Maine was the only state to join the union in 1820.
California did enter the Union as a free state - too big to fit the terms of the Missouri Compromise. The key question was: What would have happened if California had entered the Union as two separate states, North and South California, meeting on the Missouri line? I believe war could then have been averted.
Missouri entered the union as a slave state, Maine entered the union as a free state, it was compromised that there would be no more slave states above the 36th parallel(Missouri was to be the only exception)
california
California was admitted into the Union on September 9, 1850 becoming the 31st state to join the Union.
On Monday September 9,1850 California entered the Union as the 31st state.
Maine entered the union as a free state. Under the Missouri Compromise of 1820 Missouri was admitted as a slave state and Maine as a free state.
Maine became the 23rd state on March 15, 1820. Its admission to the Union balanced the simultaneous admission of Missouri as a slave state.
Maine entered the union on March 15, 1820. Missouri entered the union on August 10, 1821, or 513 days later.
California entered the Union as a free state in 1850.
New York entered the Union prior to California. New York became a U.S. state on July 26, 1788. California became a U.S. state on September 9, 1850.
That's exactly what happened, as specified by the Missouri Compromise of 1820!