WHAT ALL HAPPENED APRIL TO NOVEMBER 1917
Find out what all happened April to November 1917

World War I: The United States declares war on Germany (see President Woodrow Wilson's address to Congress). (6. April 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 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 first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World. (4. June 1917)

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

Vladimir Lenin returns to Petrograd, Russia from exile in Switzerland. (16. April 1917)

World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans. (12. April 1917)

The Allies reach the Yser Canal at the Battle of Passchendaele. (27. July 1917)

The Commonwealth War Graves Commission is established through Royal Charter to mark, record and maintain the graves and places of commemoration of Commonwealth of Nations military forces. (21. May 1917)

World War I: the deadliest German air raid on London during World War I is carried out by Gotha G bombers and results in 162 deaths, including 46 children, and 432 injuries. (13. June 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)

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

Vietnamese prison guards led by Trịnh Văn Cấn mutiny at the Thái Nguyên penitentiary against local French authority. (30. August 1917)

The Bisbee Deportation occurs as vigilantes kidnap and deport nearly 1,300 striking miners and others from Bisbee, Arizona. (12. July 1917)

World War I: Battle of Beersheba – the "last successful cavalry charge in history". (31. October 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)

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)

Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal. (13. May 1917)

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

World War I: The Battle of Polygon Wood begins. (26. September 1917)