How long a period was prehistory? a. more than two million years b. about eight thousand years c. more than two hundred years d. about sixteen thousand years

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.