The war with Mexico resulted in California and the southwest territory becoming part of the United States.
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California did not secede; it remained loyal to the union.
On Monday September 9,1850 California entered the Union as the 31st state.
California was the first state on the Pacific coast to be admitted into the union. California was admitted into the Union on September 9, 1850 becoming the 31st state to join the Union. Oregon was admitted into the Union on February 14, 1859 becoming the 33rd state to join the union. Washington was admitted into the Union on November 11, 1889 becoming the 42nd state to join the Union.
California was admitted in to the Union as a free state. It became a state on September 9, 1850 and was the 31st state to be admitted to the Union.
California