WHAT HAPPENED IN 1917.
Look what happened the 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)

First British bombing of Germany in World War I. (17. October 1917)

The Love Field in Dallas, Texas is opened. (19. October 1917)

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

Battle of Caporetto; Italy suffers a catastrophic defeat by the forces of Austria-Hungary and Germany on the Austro-Italian front of World War I (lasts until 19 November - also called Twelfth Battle of the Isonzo). (24. October 1917)

Traditionally understood date of the October Revolution, involving the capture of the Winter Palace, Petrograd, Russia. The date refers to the Julian Calendar date, and corresponds with November 7 in the Gregorian calendar. (25. October 1917)

World War I: Battle of Caporetto; Italy suffers a catastrophic defeat at the forces of Austria-Hungary and Germany. The young unknown Oberleutnant Erwin Rommel captures Mount Matajur with only 100 Germans against a force of over 7000 Italians. (26. October 1917)

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

World War I: Battle of Beersheba – the "last successful cavalry charge in history". (31. October 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 Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting. (2. November 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)

St. Tikhon of Moscow is elected the Patriarch of Moscow and of the Russian Orthodox Church. (5. November 1917)

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

World War I: Third Battle of Gaza ends: British forces capture Gaza from the Ottoman Empire. (7. November 1917)

The People's Commissars give authority to Vladimir Lenin, Leon Trotsky, and Joseph Stalin. (8. November 1917)

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

World War I: Battle of Cambrai begins – British forces make early progress in an attack on German positions but are later pushed back. (20. November 1917)

Ukraine is declared a republic. (20. November 1917)