The Louisiana Purchase helped to double the size of the country and provided control of the Mississippi River. The Louisiana Purchase was a massive land purchase by the U.S. from France under President Thomas Jefferson's administration.
Schools in the United States started integrating in the 1950's as a direct result of the Brown v Board of Education Supreme Court ruling.
The document was the Declaration of Independence
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The completion of the first transcontinental railroad in 1869 encouraged settlement of the American west by proving easier travel and it took less time.
