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United States bought all the of France which goes extends the US to the Mississippi to River Rocky Mountains.
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Lewis and Clark explore the land bought from France in the Louisiana Purchase.
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The war between America and Britain fighting over the borders of Canada and America.
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The Treaty of Ghent was signed to resolve the issue of the borders of America and Canada.
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America and Mexico fighting over the borders of Texas and Mexico for property issues.
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Gold was discovered in California and people from all the over the country came to California to collect gold.
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The treaty settling the borders of Texas and of Mexico.
