what seven US states were partially or entirely created from land acquired by a treaty with Mexico in 1848
California
June 1846
slavery in the territory acquired from Mexico
New Mexico is a state which belongs to the United States since 1848. It was part of the country of Mexico, and was acquired after the Mexican-American War (1846-1848). Mexico, the country from which New Mexico was acquired, is an independent country south of the United States. Its capital is Mexico City.
New Mexico state was held entirely by native Americans in 1864.
The Gadsden Purchase was the first state after Mexico to be created from the land acquired.
California
Manifest destiny and slavery on acquired territories (specially Texas) motivated such conquest. See related questions.
It was acquired from Spain. It never belonged to Mexico.
NM
California
Mexico
Amundsen was partially sponsored by Norway, not Mexico.
June 1846
I guess you mean the state of New Mexico, which was acquired during the Mexican-American War (1846-1848). If you mean the country of Mexico, it has been an independent country since 1810.
It's actually in Arizona, but partially in Northern Mexico.
All of them were acquired form Mexico.