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June 28, 1914
The victims, Archduke Franz Ferdinand their to the throne of the Austro-Hungarian Empire, and his wife Sophie, were in the Bosnian city in conjunction with Austrian troop exercises nearby. The couple was returning from an official visit to City Hall. -
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The initial Turkish offensive into Russia is thwarted as the Turkish 3rd Army suffers a defeat by the Russian Army of the Caucasus near Kars. The Russians then begin a multi-pronged invasion of the Ottoman Empire from the Caucasus. -
May 7, 1915
A German U-Boat torpedoes the British passenger liner Lusitania off the Irish coast. It sinks in 18 minutes, drowning 1,201 persons, including 128 Americans. President Woodrow Wilson subsequently sends four diplomatic protests to Germany. -
Feb. 21, 1916
the German 5th Army attacks the French 2nd Army north of the historic city of Verdun, following a nine-hour artillery bombardment. The Germans under Chief of the General Staff, Erich Falkenhayn, seek to "bleed" the French Army to death by targeting the cherished city. -
July 1, 1916
The British Army suffers the worst single-day death toll in its history as 18,800 soldiers are killed on the first day of the Battle of the Somme. The losses come as 13 attacking divisions encounter German defenses that are still intact despite the seven-day bombardment designed to knock them out. -
Nov. 7, 1916
American voters re-elect President Woodrow Wilson who had campaigned on the slogan, "He kept us out of war." -
April 6, 1917
The United States of America declares war on Germany.
because of the war, everything that happen led to it. -
Jan. 19, 1917
The British intercept a telegram sent by Alfred Zimmermann in the German Foreign Office to the German embassies in Washington, D.C., and Mexico City. Its message outlines plans for an alliance between Germany and Mexico against the United States. According to the scheme, Germany would provide tactical support while Mexico would benefit by expanding into the American. Southwest -
Dec. 15, 1917
Soviet Russia signs an armistice with Germany. With Russia's departure from the Eastern Front, forty-four German divisions become available to be redeployed to the Western Front in time for Ludendorff's Spring Offensive. -
Jan. 1, 1918
a semiweekly newspaper published by the command of the British army in Iraq. In 1918–19. At the time, Britain was at war with the Ottoman Empire, which had ruled Iraq since the 16th century. -
Sept. 26, 1918
The morning of September 26, 1918, after a six-hour-long bombardment over the previous night, more than 700 Allied tanks, followed closely by infantry troops, advance against German positions in the Argonne Forest and along the Meuse River. -
Nov. 11, 1918
Germany, bereft of manpower and supplies and faced with imminent invasion, signed an armistice agreement with the Allies in a railroad car outside Compiégne, France. The First World War left nine million soldiers dead and 21 million wounded, with Germany, Russia, Austria-Hungary, France, and Great Britain each losing nearly a million or more lives.
