World War I: United States Declares War on Austria-Hungary, December 7, 1917

First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution (March 8 in the Gregorian calendar). Date: February 23, 1917 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917Allies Reach Yser Canal at Passchendaele Battle,…

American entry into World War I: President Wilson asks the U.S. Congress for a declaration of war on Germany. Date: April 2, 1917 Read more on Wikipedia → 📅 Other events on April 2 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917Lenin Returns to Petrograd, Russian Revolution…

The Bisbee Deportation occurs as vigilantes kidnap and deport nearly 1,300 striking miners and others from Bisbee, Arizona. Date: July 12, 1917 Read more on Wikipedia → 📅 Other events on July 12 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917Mexico Adopts Current Constitution, Federal Republic Established…

Anti-lynching movement: The Silent Parade takes place in New York City, in protest against murders, lynchings, and other violence directed towards African Americans. Date: July 28, 1917 Read more on Wikipedia → 📅 Other events on July 28 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917Vladimir Lenin…

Halifax Explosion: A munitions explosion near Halifax, Nova Scotia kills more than 1,900 people in the largest artificial explosion up to that time. Date: December 6, 1917 Read more on Wikipedia → 📅 Other events on December 6 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917World War…

Tsar Nicholas II of Russia abdicates the Russian throne, ending the 304-year Romanov dynasty. Date: March 15, 1917 Read more on Wikipedia → 📅 Other events on March 15 📅 Events on this day in 1917 📅 On This Day (Today) More events from 1917World War I: Canadian Forces Capture Vimy Ridge, April 12, 1917Zimmermann…