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Under the provisions of the Missouri Compromise, Maine was the state that entered the Union with Missouri.
None, Maine was the only state to join the union in 1820.
What did it enter as? It was a free state and grew when immigrants flooded in. They started the farms.
Oregon entered as a Free 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 entered the US as a free state. The state was carved out of territory ceded from Massachusetts. This was part of the 1820 Missouri Compromise. This act allowed Missouri to enter the US as a slave state. In order to keep the balance between free and slave states intact. And, so Maine was created as a free state.
Compromise of 1850
On Monday September 9,1850 California entered the Union as the 31st state.
Yes, slavery was permitted in the territory of Minnesota between 1849 and 1858. However, the state officially entered the Union in 1858 as a free state, meaning slavery was no longer allowed.
California entered the Union as a free state in 1850.
The state of Vermont prohibited slavery in 1777. As the US Constitution was not ratified until a decade later the answer is yes, Vermont entered the Union as a Free State.
Michigan was a free state, and stayed in the Union.