Answer:
It was purchased in 1803.
Explanation:
It's really important cause it doubled the land of the united stated and it was sold off really cheap as well.
They were first dug in 1914.
I know for sure that the Aztec and Inca societies would practice human/animal sacrifice in order to have a "sun rise;" sacrifice it to the Gods up above. I also know that the Aztec and Inca societies were really behind when it came down to centralized government trade.
That's all I know and hope this helps!