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Trench Warfare
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Trench warfare is a type of land warfare using occupied fighting lines consisting largely of trenches, in which troops are significantly protected from the enemy's small arms fire and are substantially sheltered from artillery. The Western Front in World War 1, located in France, was fought using trench warfare. WW1 started on 28 June 1914, and by the end of 1914 both sides had built trenches that went from the North Sea and through Belgium and France. -
Sinking of Lusitania
Early in the first world war, the Lusitania fell victim to torpedo attacks when Germany waged submarine warfare on the United Kingdom. The sinking turned public opinion in many countries against Germany. 128 people lost their lives. This death of over 100 Americans motivated the U.S. to enter the war. -
Zimmerman Note`
The Zimmermann Telegram (or Zimmermann Note or Zimmerman Cable) was a secret diplomatic communication issued from the German Foreign Office that proposed a military alliance between Germany and Mexico in the prior event of the United States entering World War I against Germany. It led to strong public support for U.S. entry into the war. -
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Espionage and Sedition Acts
The Espionage and Sedition Acts prohibited many forms of speech perceived as disloyal to the U.S. The Espionage Act of 1917 was extended by the Sedition Act of 1918. The acts targeted Socialists and labor leaders.The Rep. minority in Congress argued that sedition laws violated the First Amendment to the Constitution, which protects freedom of speech and the press. In Schenck v. United States in 1919, the Supreme Court ruled that the Espionage Act did not violate freedom of speech. -
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Spanish Flu
The 1918 flu pandemic was an unusually deadly influenza pandemic. It infected 500 million people around the world and resulted in the deaths of 50 to 100 million (three to five percent of the world's population, making it one of the deadliest natural disasters in human history. A considerable spike occurred at the time of the pandemic, specifically the year 1918. Life expectancy in the United States alone dropped by about 12 years. -
Fourteen Points
The Fourteen Points was a statement of principles for peace that was to be used for peace negotiations in order to end World War I. Wilson’s articulation of a League of Nations was wildly popular. However, it proved exceptionally difficult to create, and Wilson left office never having convinced the United States to join it. -
Treaty of Versailles
In the 1919 Treaty of Versailles, the victorious powers (the United States, Great Britain, France, and other allied states) imposed punitive territorial, military, and economic provisions on defeated Germany. In the west, Germany returned Alsace-Lorraine to France. -
Women
The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of sex. During WWI, large numbers of women were recruited into jobs vacated by men who had gone to fight in the war. New jobs were also created as part of the war effort, for example in munitions factories.