WHAT ALL HAPPENED FEBRUARY TO APRIL 1917
Find out what all happened February to April 1917

Tsar Nicholas II of Russia abdicates the Russian throne and his brother the Grand Duke becomes Tsar. (15. March 1917)

First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution. (23. February 1917)

World War I: The United States breaks off diplomatic relations with Germany a day after the latter announced a new policy of unrestricted submarine warfare. (3. February 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)

World War I: The Battle of Arras – the battle begins with Canadian Corps executing a massive assault on Vimy Ridge. (9. April 1917)

World War I: The U.S. ambassador to the United Kingdom is given the Zimmermann Telegram, in which Germany pledges to ensure the return of New Mexico, Texas, and Arizona to Mexico if Mexico declares war on the United States. (24. February 1917)

The United States takes possession of the Danish West Indies after paying $25 million to Denmark, and renames the territory the United States Virgin Islands. (31. March 1917)

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

The Congress of the United States passes the Immigration Act of 1917 over President Woodrow Wilson's veto. Also known as the Asiatic Barred Zone Act, it forbade immigration from nearly all of south and southeast Asia. (5. February 1917)

Some provinces and cities in the Philippines were incorporated due to the ratification of Act No. 2711 or the Administrative Code of the Philippines. (10. March 1917)

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

Vladimir Lenin returns to Petrograd, Russia from exile in Switzerland. (16. April 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: United States President Woodrow Wilson asks the U.S. Congress for a declaration of war on Germany. (2. April 1917)

World War I: Baghdad falls to Anglo-Indian forces commanded by General Stanley Maude. (11. March 1917)

The Original Dixieland Jass Band records the first jazz record, for the Victor Talking Machine Company in New York. (26. February 1917)

The United States Senate votes to limit filibusters by adopting the cloture rule. (8. March 1917)

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

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

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