As revolution means a forcible take over or change of a government usually or in favor of a new order A scientific revolution would be changing the way science works. for example :travel creating instant teleportation would be a scientific revolution because it changes the way the way the science of transportation works .
<span>Electoral College system.
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The U.S. Supreme Court hands down its decision on Sanford v. Dred Scott, a case that intensified national divisions over the issue of slavery.
In 1834, Dred Scott, a slave, had been taken to Illinois, a free state, and then Wisconsin territory, where the Missouri Compromise of 1820 prohibited slavery. Scott lived in Wisconsin with his master, Dr. John Emerson, for several years before returning to Missouri, a slave state. In 1846, after Emerson died, Scott sued his master’s widow for his freedom on the grounds that he had lived as a resident of a free state and territory.
