Many people moved to California in 1848 following the Gadsden Purchase.
the outlawing of slavery.
the discovery of gold.
the annexation of Texas.

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.

the democratic party is the answer because they disapproved of slavery