The First World War effectively began when Austria-Hungary declared war on Serbia one month after the assassination of Archduke Ferdinand and his wife. More »
Senate approves UN charter
The Senate approves the United Nations charter. More »
14th Amendment adopted
The Fourteenth Amendment is adopted following its ratification by three-quarters of the states. The amendment overturns the Dred Scott decision and will serve as the basis for the Supreme Court's ruling in Brown v. Board of Education.
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