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The Iran-Contra Affair was a secret U.S. arms deal that traded missiles and other arms to free some Americans held hostage by terrorists in Lebanon but also used funds from the arms deal to support armed conflict in Nicaragua. The controversial deal—and the ensuing political scandal—threatened to bring down the presidency of Ronald Reagan to the point where impeachment was considered. It caused massive distrust in the government and its agencies
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It impacted politics in the mid-19th century because of the large inflows of immigrants after 1845 from cultures that were different from the existing American culture.
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During the scientific revolution, Nicolaus Copernicus and Galileo Galilei made important discoveries in the field of astronomy. Robert Boyle and Isaac Newton discovered many of the basic laws of physics during this period as well. ... Astronomy was considered more important than physics during the scientific revolution
