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President James Monroe issued this doctrine which prevented the Europeans from colonizing America.
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Britain smuggled opium into China addicting millions to the drug. When Britain refused to stop smuggling in the opium there was the Opium War.
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Perry entered the Tokyo Harbor with boats that impressed/scared the the Japanese. They had never seen steam powered gunboats. Perry brought a letter asking the Shogun to allow free trade. Perry said he would comeback in a year with a larger fleet for their reply. The result was the Treaty of Kanagawa.
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This war was over the issues of the liberation of Cuba. The war began after American demand for the resolution of the Cuban fight for independence was rejected by Spain.
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The Mexican Revolution was an armed struggle that was led by Francisco Madero agaisnt Benito Juarez.
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The largest man made canal. The Panama Canal Joins the Pacific and Atlantic Ocean. Locks lift the boats to a higher or lower lever while traveling the Canal.
