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Franz Ferdinand and his wife, Sophie were riding in an open carriage when Serbian terrorists threw a bomb into their open-topped car and barely escaped death, however, their driver inadvertently drove them past 19 -year-old Serbian nationalist Gavrilo Princip, who shot and killed both Franz Ferdinand and Sophie at point-blank range, this caused Austria-Hungary to go war with Serbia on July 28, with the help of Germany.
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As World War I erupted across Europe, President Woodrow Wilson declared that the U.S. would remain "impartial in thought as well as in action."
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A German U-boat torpedoed the British-owned luxury steamship Lusitania, which killed 1,195 people including 128 Americans, the sinking of the Lusitania strained relations between Germany and the neutral United States, fueled anti-German sentiment and set off a chain of events that eventually led to the U.S. enter World War I.
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Although the first American troops arrived in Europe in June 1917, the AEF did not fully participate at the front until October, when the First Division, one of the best-trained divisions of the AEF, entered the trenches at Nancy, France.
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Sent by German foreign secretary Arthur Zimmermann to the German minister in Mexico, the note revealed a plan to renew unrestricted submarine warfare and to form an alliance with Mexico and Japan if the United States declared war on Germany, however, the message was intercepted by the British and passed on to the United States; its publication caused outrage and contributed to the U.S. entry into World War I.
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President Woodrow Wilson established the committee through Executive Order 2594 in response to the U.S. entry into World War I in an attempt to mobilize public opinion behind the war effort with every available form of mass communication.
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President Woodrow Wilson went before a joint session of Congress to request a declaration of war against Germany, Wilson cited Germany's violation of its pledge to suspend unrestricted submarine warfare in the North Atlantic and the Mediterranean, as well as its attempts to entice Mexico into an alliance against the United States, as his reasons for declaring war.
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The act required all men in the U.S. between the ages of 21 and 30 to register for military service.
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The Espionage Act made it a crime for anyone to convey information intended to interfere with the U.S. armed forces prosecution of the war effort or to promote success of the country's enemies.
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President Woodrow Wilson proposed a 14-point program for world peace, these points were later taken as the basis for peace negotiations at the end of the war.
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It is considered the pivotal battle of World War I, as Allied troops blunted the German advance and started the counteroffensive that would ultimately win the war
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It was an international meeting convened at Versailles just outside of Paris, the purpose of the meeting was to establish terms of the peace after World War I.
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The Senate rejected the Treaty of Versailles, which formally ended World War 1, mainly because President Woodrow Wilson failed to take senators' objections to the agreement into consideration.
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It was signed at 18:36 near Compiegne, France, by officials of Nazi Germany and the Third French Republic, it did not come into effect until after midnight on 25 June.
