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how did the american expansion into the native american lands between 1820 and 1840 affect the slave trade?

In this theory for forming a government, violence has made people follow a leader. evolution theory force theory divine right theory social contract theory

How does the grapes of wrath identify the effects of americans' views on the dust bowl? the story is a depiction of oklahoma farmers and the difficulties they experienced migrating to california. the story accurately describes the impact the california vineyard industry had on migrant workers. the story covers the rise of corporate farming and the devaluation of the small family farms that dotted the great plains. the story is an allegory for the conflicts between american values and the rise of the communist party in the united states.

What emperor was given credit for having the aqueducts built