WHAT ALL HAPPENED MAY TO DECEMBER 1917
Find out what all happened May to December 1917

October Revolution: In Tallinn, Estonia, Communist leader Jaan Anvelt leads revolutionaries in overthrowing the Provisional Government (As Estonia and Russia are still using the Julian Calendar, subsequent period references show an October 23 date). (5. November 1917)

World War I: An armistice is reached between the new Bolshevik government and the Central Powers. (15. December 1917)

King George V issues a Proclamation stating that the male line descendants of the British Royal Family will bear the surname Windsor. (17. July 1917)

Russia is officially proclaimed a republic. (14. September 1917)

Lenin calls for the October Revolution. (23. October 1917)

In a game against the Washington Senators, Boston Red Sox pitcher Ernie Shore retires 26 batters in a row after replacing Babe Ruth, who had been ejected for punching the umpire. (23. June 1917)

World War I: At Vincennes outside of Paris, Dutch dancer Mata Hari is executed by firing squad for spying for the German Empire. (15. October 1917)

Ten Suffragettes are arrested while picketing the White House. (28. August 1917)

World War I: Third Battle of Ypres ends: After three months of fierce fighting, Canadian forces take Passchendaele in Belgium. (6. November 1917)

Joseph Stalin enters the provisional government of Bolshevik Russia. (9. November 1917)

World War I: Russia and the Central Powers sign an armistice at Brest-Litovsk, and peace talks leading to the Treaty of Brest-Litovsk begin. (2. December 1917)

The "Miracle of the Sun" is witnessed by an estimated 70,000 people in the Cova da Iria in Fátima, Portugal. (13. October 1917)

World War I: Greece declares war on the Central Powers. (30. June 1917)

The Balfour Declaration proclaims British support for the "establishment in Palestine of a national home for the Jewish people" with the clear understanding "that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities". (2. November 1917)

The Gregorian calendar date of the October Revolution, which gets its name from the Julian calendar date of 25 October. On this date in 1917, the Bolsheviks storm the Winter Palace. (7. November 1917)

In Milwaukee, Wisconsin, 9 members of the Milwaukee Police Department are killed by a bomb, the most deaths in a single event in U.S. police history until the September 11 attacks in 2001. (24. November 1917)

World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription. (18. May 1917)

Alexander I becomes king of Greece. (30. May 1917)

World War I: German forces defeat Portuguese army of about 1200 at Negomano on the border of modern-day Mozambique and Tanzania. (25. November 1917)

World War I: Brazil declared in state of war with Central Powers. (26. October 1917)