A timeline of WWI, the first global conflict
Everett Collection // Shutterstock
A timeline of WWI, the first global conflict
Library of Congress
June 28, 1914: Archduke Franz Ferdinand assassinated
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July 23, 1914: Austria-Hungary demands retribution from Serbia; Serbia bucks demands
Everett Collection // Shutterstock
July 28, 1914: WWI begins with Austria-Hungary declaring war on Serbia
Gummerus // Wikimedia Commons
Aug. 1, 1914: Germany declares war on Russia
Lwc 21 // Wikimedia Commons
Aug. 3, 1914: Schlieffen Plan; Germany declares war on France
Unknown // Wikimedia Commons
Aug. 4, 1914: Germany invades Belgium; Britain declares war on Germany
Photo12/Universal Images Group // Getty Images
Aug. 7, 1914: France invades Alsace
Bettmann // Getty Images
Aug. 10, 1914: Austria-Hungary invades Russia
Unknown // Wikimedia Commons
Aug. 23-29, 1914: Battle of Tannenberg
Unknown // Wikimedia Commons
Sept. 5, 1914: Treaty of London
German Army // Wikimedia Commons
Sept. 5-12, 1914: First Battle of the Marne
Everett Collection // Shutterstock
Oct. 19-Nov. 30, 1914: First Battle of Ypres
Surgeon Oscar Parkes // Wikimedia Commons
Nov. 2, 1914: British begin a naval blockade of Germany
Unknown // Wikimedia Commons
Nov. 5, 1914: Britain, France declare war on Ottoman Empire
National Museum of the U.S. Navy // Wikimedia Commons
Nov. 11, 1914: Ottoman Empire declares war on the Allies
Unknown // Wikimedia Commons
Dec. 24, 1914: The unofficial Christmas truce
W.wolny // Wikimedia Commons
Feb. 18, 1915: Germany begins a naval blockade of Great Britain
RJHall // Wikimedia Commons
April 22, 1915: Second Battle of Ypres
Gsl~commonswiki // Wikimedia Commons
April 25, 1915: Allies attack Ottoman Empire at Battle of Gallipoli
George Grantham Bain // Wikimedia Commons
May 7, 1915: German U-boat torpedoes Lusitania
Ugo Ojetti // Wikimedia Commons
May 23, 1915: Italy declares war on Austria-Hungary
Agence Rol // Wikimedia Commons
Feb. 21, 1916: Germany attacks Verdun
Curzon, Commander RNVR // Wikimedia Commons
May 31, 1916: Naval Battle of Jutland
Rcbutcher // Wikimedia Commons
July 1, 1916: First Battle of the Somme
Hulton Deutsch // Getty Images
Dec. 18, 1916: Battle of Verdun ends
National Museum of the U.S. Navy // Wikimedia Commons
Feb. 1, 1917: Germany restarts unrestricted submarine warfare following Lusitania attack
Kesäperuna // Wikimedia Commons
Feb. 3, 1917: US severs diplomatic relations with Germany
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April 6, 1917: US declares war on Germany
United States Army Signal Corps // Wikimedia Commons
June 7, 1917: Gen. John J. Pershing reaches England
Moore, William E. // Wikimedia Commons
June 24, 1917: American combat forces arrive in France
John Warwick Brooke // Wikimedia Commons
Nov. 20, 1917: British offensive brings first large-scale, wartime use of tanks
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Dec. 15, 1917: Russia, Germany sign armistice
Unknown // Wikimedia Commons
Jan. 8, 1918: President Woodrow Wilson presents Fourteen Points to Congress
Cyrus LeRoy Baldridge // Wikimedia Commons
Feb. 8, 1918: The Stars and Stripes begins publication
The Library of Congress // Wikimedia Commons
March 1918: Bilingual American women recruited as Hello Girls
United States War Department // Wikimedia Commons
March 3, 1918: Russia, Germany sign Treaty of Brest-Litovsk
John Warwick Brooke // Wikimedia Commons
March 21, 1918: Germany begins final war offensive
adoc-photos/Corbis // Getty Images
May 28, 1918: US wins Battle of Cantigny
US War Dept. // Wikimedia Commons
July 15-Aug. 6, 1918: Americans thwart Germans crossing the Marne
U.S. National Archives and Records Administration // Wikimedia Commons
Sept. 12, 1918: American First Army attacks Saint-Mihiel salient
U.S. Marines // Wikimedia Commons
Sept. 26, 1918: Allied forces begin final war offensive
German Federal Archives // Wikimedia Commons
Nov. 11, 1918: Germany signs Armistice at Compiègne
J C E Harding // Wikimedia Commons
Dec. 1, 1918: British, American forces arrive in Germany
Unknown // Wikimedia Commons
Jan. 18, 1919: Peace conference begins in Paris
N.V. Vereenigde Fotobureaux // Wikimedia Commons
Feb. 14, 1919: Draft of the covenant of the League of Nations
Helen Johns Kirtland // Wikimedia Commons
June 28, 1919: Treaty of Versailles signed by Allied, German forces; US signs treaty of guaranty
Harris & Ewing // Wikimedia Commons
Nov. 19, 1919: US Senate does not ratify Treaty of Versailles
Edward N. Jackson // Wikimedia Commons
Jan. 10, 1920: Treaty of Versailles takes effect
Library of Congress // Wikimedia Commons
March 19, 1920: US Senate neglects to ratify Treaty of Versailles for a second time
Associated Press // Wikimedia Commons
