How was New Mexico perceived by the rest of the United States?

On January 6, 1912, New Mexico is admitted into the United States as the 47th state. ... When Mexico achieved its independence from Spain in 1821, New Mexico became a province of Mexico, and trade was opened with the United States. In the next year, American settlers began arriving in New Mexico via the Santa Fe Trail.

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becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery

not to sure thinking it would be a hope this