During the Civil War, Missouri was Union, but just barely. Abraham Lincoln's 1863 Emancipation Proclamation only freed the slaves in the ten rebelling states, and Missouri was not one of them. The Emancipation Proclamation did not outlaw the practice of slavery, it was a necessity of war. Sorry if I’m wrong
Brazilians,is the right answer...
Mostly due to the ideas of Manifest Destiny. They started going westwards with the desire to span the United States from coast to coast, and then they started going worldwide. The idea behind it is that the United States were destined to help the world become free and democratic like they were so they started helping people worldwide in rebellions against colonialism or in similar affairs.
They moved out of the foothills and into the plains (near rivers). The rivers provided more opportunities for food growth.
Answer:
They could have decreased protectionism. Protectionism means that they limited free trade between nations and restricted trade of foreign goods. Protectionism is widely accepted as maybe the biggest reason for the development of the Great Depression and thus if the US had decreased it, it most likely would not have happened at all.