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James W. Marshall finds gold at Sutters Mill in Coloma, California.
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The building of the monument begins in Washington, D.C.
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War between Mexico and America where Mexico gives up what is know as the Southwestern United States, to the U.S.
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Published by Karl Marx and Friedrich Engels in London.
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Revolt against Hungarians People's Republic and its Soviet-imposed policies.
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Fighting between Revolutionaries and Royalist forces sparks the German Revolutions lasting until 1849.
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Establishes boards of health across England and Wales, and was the nation's first Public Health Law.
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Opens in Frankfurt, Germany.
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Ends Mexican-American War, and is ratified by the Mexican Government.