What was unique about the physical geography of the Oaxaca Valley? It contained a vast system of caves.
It sat on top of an active volcano.
It sat thousands of feet above sea level.
It contained mostly swamps and jungles.

probally   a few days after there called

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.

joseph stalin's cult of personality became a prominent part of soviet culture in december 1929, after a lavish celebration for stalin's 50th birthday.[answer:

explanation:

the aztecs painted books and kept records