WHAT ALL HAPPENED MARCH TO SEPTEMBER 1917
Find out what all happened March to September 1917

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

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

World War I: First Battle of Gaza – British troops are halted after 17,000 Turks block their advance. (26. March 1917)

World War I: Battle of Messines – Allied soldiers detonated ammonal mines underneath German trenches at Messines Ridge, killing 10,000 German troops. (7. June 1917)

World War I: Conscription begins in the United States as "Army registration day". (5. June 1917)

The Georgian Orthodox Church restores its autocephaly abolished by Imperial Russia in 1811. (25. March 1917)

Sir Robert Borden introduces the first income tax in Canada as a "temporary" measure (lowest bracket is 4% and highest is 25%). (25. July 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: 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)

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

Russia is officially proclaimed a republic. (14. September 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: The Battle of Arras – the battle begins with Canadian Corps executing a massive assault on Vimy Ridge. (9. April 1917)

The Great Atlanta fire of 1917 causes $5.5 million in damages, destroying some 300 acres including 2,000 homes, businesses and churches, displacing about 10,000 people but leading to only one fatality (due to heart attack). (21. May 1917)

The first U.S. troops arrive in France to fight alongside Britain and France against Germany in World War I. (26. June 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)

International Women's Day protests in St. Petersburg mark the beginning of the February Revolution (so named because it was February on the Julian calendar). (8. March 1917)

The enactment of the Jones-Shafroth Act grants Puerto Ricans United States citizenship. (2. March 1917)

The U.S. government releases the unencrypted text of the Zimmermann Telegram to the public. (1. March 1917)