One main reason why John C Breckenridge supported the purchase of the Louisiana territory was because he thought it would held end the issue of slavery, by leaving it up to "popular sovereignty" in the new territory.
He was the first to develop a process to manufacture steel.
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Explanation:
being able to develop other elements of culture like language and literature
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Edit: <span>c) to inspire the American people to collectively work toward a better future</span>
The Soviet Union launched Sputnik in October 1957.