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Assassination of Archduke Franz Ferdinand - June 28, 1914

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Assassination of Archduke Franz Ferdinand - June 28, 1914

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The heir to the Austro-Hungarian throne, Franz Ferdinand, was assassinated by Slavic Nationalist Gavrilo Princip. The assassination is considered the spark that ignited WW1. It eventually led to Austria declaring war on Serbia on July 28, 1914.
https://www.history.com/this-day-in-history/archduke-ferdinand-assassinated

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Gallipoli Campaign - Feb 19, 1915 – Jan 9, 1916

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Gallipoli Campaign - Feb 19, 1915 – Jan 9, 1916

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The British army attempted to stop the Ottomans from supplying the German war effort. The British also attempted to open up a line of communications with their allies in Russia.  Unfortunately for the British, they lacked the necessary strategy for completing the task and the Gallipoli Campaign ended in failure.
https://ndupress.ndu.edu/Media/News/Article/621138/the-gallipoli-campaign-learning-from-a-mismatch-of-strategic-ends-and-means/

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On May 7, 1915, a Germane submarine caused the sinking of a British ocean liner know as the RMS Lusitania. The sinking of the Lusitania turned American public opinion against Germany due to the fact that 128 Americans were killed in the sinking. It led to a increase in the amount of anti-German propaganda in both the US and Britain.
https://www.rmslusitania.info/

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Reelection of Wilson - November 7, 1916	

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Reelection of Wilson - November 7, 1916	

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The most important issue of the 1916 election was over the issue of World War I. Wilson gained many vote by proclaiming that he would keep the US out of the war. Of course, this did not actually happen and the US joined the war In April 1917.
https://www.mentalfloss.com/article/88433/wwi-centennial-wilson-wins-reelection

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British cryptographers intercepted a telegram sent from Germany to their ambassador in Mexico which urged Mexico to invade the US and reclaim their old territories in Arizona and Texas. The telegram also urged Japan to enter the war. This enraged the United States and increased the chances of them entering into the war.
http://www.users.miamioh.edu/hadidotj/zimmermann/the-telegram.html

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The goal of Wilson's message was to convince American citizens and the government to enter into the war. He believed that the US had a global moral need to join the war on the Allied side. His speech convinced congress and the US officially joined the war only 4 days later.
https://teachingamericanhistory.org/blog/wilsons-war-message/

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The act required all men ages 21 to 30 to to register for the military. 24 million men registered for the draft and 2.8 million of them were sent to Europe to fight in the war. Over half of the American soldiers during World War I were drafted.
https://www.archivesfoundation.org/documents/mobilizing-war-selective-service-act-world-war/

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This law was aimed towards Germans living in the US during the war. The law banned the use of negative words towards the constitutions. Many people believed that this law violated the First Amendment.
https://www.digitalhistory.uh.edu/disp_textbook.cfm?smtID=3&psid=3904

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This was another law that limited the First Amendment rights of Americans. It banned American's ability to critique the military and support US opposed countries. This act was repealed in 1920 after the war.
https://mtsu.edu/first-amendment/article/1239/sedition-act-of-1918

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Battle of Aisne-Marne - July 15, 1918 - August 6, 1918

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Battle of Aisne-Marne - July 15, 1918 - August 6, 1918

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This was the final offensive attack by the German military during WWI. Their plan was attack France in the hopes of drawing allied attention away from Belgium. The battles ended in August and the German hopes of winning the war were completely destroyed.
https://vpiworldwarone.lib.vt.edu/exhibits/show/stories/aisne-marne

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This was one of the major American offensive of the war. The US attack the Germans who were retreating from St. Mihel. The Germans lost 13,000 men as prisoners and 5,000 men were killed.
http://www.historyofwar.org/articles/battles_st_mihiel.html

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This attack brought about the end of the war. This campaign was one of the deadliest in American history as over 26,000 soldiers were killed. The allies won the campaign and brought an end to the war.
https://www.archives.gov/research/military/ww1/meuse-argonne

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Germany signed an armistice with the allies that brought about the end of WWI. It was signed in a railroad car near  Compiégne, France. Armistice Day is a national holiday which celebrates this event.
https://www.history.com/this-day-in-history/world-war-i-ends

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The 18th Amendment to the US Constitution banned the sale of alcohol within the United States. It did little to actually stop the sell of alcohol and created a large underground market. The illegal marketers made billions off of their alcohol sales.
https://www.atf.gov/our-history/timeline/18th-amendment-1919-national-prohibition-act

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This document was signed by the Allies and Germany June 28, 1919. It required that Germany give up the territory the had gained and pay off debts. Another important creation from the treaty was the League of Nations, which was the first governmental organization that attempted to protect world peace.
https://guides.loc.gov/treaty-of-versailles