The Top 22 Events of WWI Digital Timeline Project

  • The Election of President Woodrow Wilson

    The Election of President Woodrow Wilson
    Democratic Governor Woodrow Wilson of New Jersey unseated incumbent Republican President William Howard Taft while defeating former President Theodore Roosevelt (who ran under the banner of the new Progressive or "Bull Moose" Party) and Socialist Party nominee Eugene V. Debs.
  • The Assassination of Archduke Franz Ferdinand: The Outbreak of WWI

    The Assassination of Archduke Franz Ferdinand: The Outbreak of WWI
    Austria-Hungary was furious and, with Germany's support, declared war on Serbia on July 28. Within days, Germany declared war on Russia—Serbia's ally—and invaded France via Belgium, which then caused Britain to declare war on Germany
  • America Proclaims Neutrality in World War I

    America Proclaims Neutrality in World War I
    President Woodrow Wilson declared U.S. neutrality on August 4, 1914, and many Americans saw little reason to entangle themselves in what they viewed as European quarreling and intrigue.
  • The Battle of the Marne

    The Battle of the Marne
    The First Battle of the Marne succeeded in pushing the Germans back for a distance of 40 to 50 miles and thus saved the capital city of Paris from capture. In this respect it was a great strategic victory, since it enabled the French to renew their confidence and to continue the war.
  • The Sinking of the Lusitania

    The Sinking of the Lusitania
    The RMS Lusitania was a British-registered ocean liner that was torpedoed by an Imperial German Navy U-boat during the First World War on 7 May 1915
  • The Battle of the Verdun

    The Battle of Verdun was fought from 21 February to 18 December 1916 on the Western Front in France. The battle was the longest of the First World War
  • The Sussex Incident

    The Sussex Incident
    torpedoing of a French cross-Channel passenger steamer, the Sussex, by a German submarine, leaving 80 casualties, including two Americans wounded.
  • The Battle of the Somme

    The Battle of the Somme
    The Battle of the Somme, also known as the Somme offensive, was a battle of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire. It took place between 1 July and 18 November 1916 on both sides of the upper reaches of the river Somme in France.
  • The Re-Election of President Woodrow Wilson

    The Re-Election of President Woodrow Wilson
    The 1916 United States presidential election was the 33rd quadrennial presidential election, held on Tuesday, November 7, 1916. Incumbent Democratic President Woodrow Wilson narrowly defeated former associate justice of the Supreme Court Charles Evans Hughes, the Republican candidate. Presidential election results map.
  • The Interception of the Zimmermann Telegram

    The Interception of the Zimmermann Telegram
    On January 17, 1917 British signals intelligence intercepted and decrypted a coded German telegram from German Foreign Secretary Arthur Zimmermann that was intended for Germany's ambassador to Mexico.
  • The Declaration of New Unrestricted Submarine Warfare by Germany

    The Declaration of New Unrestricted Submarine Warfare by Germany
    On January 31, 1917, Bethmann Hollweg went before the German Reichstag government and made the announcement that unrestricted submarine warfare would resume the next day, February 1: "The destructive designs of our opponents cannot be expressed more strongly.
  • The United States Enters World War I

    The United States Enters World War I
    On April 4, 1917, the U.S. Senate voted in support of the measure to declare war on Germany. The House concurred two days later. The United States later declared war on German ally Austria-Hungary on December 7, 1917.
  • The Selective Service Act

    The Selective Service Act
    The Selective Service Act of 1917 or Selective Draft Act authorized the United States federal government to raise a national army for service in World War I through conscription.
  • The Espionage Act

    The Espionage Act
    The Espionage Act of 1917 is a United States federal law enacted on June 15, 1917, shortly after the United States entered World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code but is now found under Title 18.
  • The Landing of the American Expeditionary Force in France

    The Landing of the American Expeditionary Force in France
    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.
  • The Fourteen Points by President Wilson

    The Fourteen Points by President Wilson
    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. The principles were outlined in a January 8, 1918 speech on war aims and peace terms to the United States Congress by President Woodrow Wilson.
  • The Beginning of the Spanish Flu Epidemic

    The Beginning of the Spanish Flu Epidemic
    Despite its name, researchers believe the Spanish flu most likely originated in the United States. One of the first recorded cases was on March 11, 1918, at Fort Riley in Kansas. Overcrowding and unsanitary conditions created a fertile breeding ground for the virus.
  • Russia Pulls Out of World War I

    Russia Pulls Out of World War I
    The Treaty of Brest-Litovsk was a separate peace treaty signed on 3 March 1918 between Soviet Russia and the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria), by which Russia withdrew from World War I.
  • The Passing of the Sedition Act

    The Passing of the Sedition Act
    The Sedition Act of 1918 curtailed the free speech rights of U.S. citizens during time of war. Passed on May 16, 1918, as an amendment to Title I of the Espionage Act of 1917, the act provided for further and expanded limitations on speech.
  • The Battle of Argonne Forest

    The Battle of Argonne Forest
    The Meuse–Argonne offensive was a major part of the final Allied offensive of World War I that stretched along the entire Western Front. It was fought from September 26, 1918, until the Armistice of November 11, 1918, a total of 47 days.
  • Armistice Day Ends World War I

    Armistice Day Ends World War I
    Armistice on the Western Front. On Nov. 11, 1918, after more than four years of horrific fighting and the loss of millions of lives, the guns on the Western Front fell silent. Although fighting continued elsewhere, the armistice between Germany and the Allies was the first step to ending World War I
  • The Paris Peace Conference & Treaty of Versailles

    The Paris Peace Conference & Treaty of Versailles
    The Treaty of Versailles was the primary treaty produced by the Paris Peace Conference at the end of World War I. It was signed on June 28, 1919, by the Allied and associated powers and by Germany in the Hall of Mirrors in the Palace of Versailles and went into effect on January 10, 1920.