WHAT ALL HAPPENED FEBRUARY TO OCTOBER 1920
Find out what all happened February to October 1920

Polish–Soviet War: the Battle of Warsaw begins and will last till August 25. The Red Army is defeated. (13. August 1920)

Azeri and Turkish army soldiers with participation of Kurdish gangs attacked the Armenian inhabitants of Shushi (Nagorno Karabakh). (22. March 1920)

France captures Damascus. (25. July 1920)

The Art Gallery of Ontario, in Toronto, opens the first exhibition by the Group of Seven. (7. May 1920)

The Soviet–Lithuanian Peace Treaty is signed. Soviet Russia recognizes independent Lithuania. (12. July 1920)

Authorities arrest Nicola Sacco and Bartolomeo Vanzetti for alleged robbery and murder. (5. May 1920)

The Grand National Assembly of Turkey (TBMM) is founded in Ankara. (23. April 1920)

Duluth lynchings in Minnesota. (15. June 1920)

During the U.S. Republican National Convention in Chicago, U.S. Republican Party leaders gathered in a room at the Blackstone Hotel to come to a consensus on their candidate for the U.S. presidential election, leading the Associated Press to first coin the political phrase "smoke-filled room". (11. June 1920)

Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Suomen Ilmavoimat, killing both crews. (7. September 1920)

Czechoslovak National assembly adopted the Constitution. (29. February 1920)

The Kapp Putsch briefly ousts the Weimar Republic government from Berlin. (13. March 1920)

The first game of the Negro National League baseball is played in Indianapolis. (2. May 1920)

A new border treaty between Germany and Denmark gives northern Schleswig to Denmark. (15. June 1920)

The Fountain of Time opens as a tribute to the 100 years of peace between the United States and Great Britain following the Treaty of Ghent. (1. September 1920)

The League of Women Voters is founded in Chicago. (14. February 1920)

The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence. (11. August 1920)

The national council in Turkey denounces the government of Sultan Mehmed VI and announces a temporary constitution. (23. April 1920)

The Tartu Peace Treaty is signed between Estonia and Russia. (2. February 1920)

The Royal Canadian Mounted Police begins operations. (1. February 1920)