The idea of the us gaining all land from one seaboard to the other is called manifest destiny the us gained these lands through several different purchases, annexations, and agreements such as the annexation of texas the treaty to give the us land in oregon below the 49th parallel and so forth.
The British would cede all lands east of the Mississippi River and North to Canada to the United States except for Florida, which would be given back to Spain.
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Shias believed that the next leader should come from Muhhammed's family, but Sunnis believed that the next leader should be chosen by the community.
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