WHAT ALL HAPPENED JANUARY TO MAY 1920
Find out what all happened January to May 1920

The Belorussian Communist Organisation is founded as a separate party. (1. January 1920)

The second Palmer Raid takes place with another 6,000 suspected communists and anarchists arrested and held without trial. These raids take place in several U.S. cities. (2. January 1920)

Polish-Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreschatyk. (9. May 1920)

The first German Expressionist film and early horror movie, Robert Wiene's The Cabinet of Dr. Caligari, receives its première in Berlin. (26. February 1920)

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

The New York State Assembly refuses to seat five duly elected Socialist assemblymen. (7. January 1920)

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

The Netherlands refuses to surrender the exiled Kaiser Wilhelm II of Germany to the Allies. (23. January 1920)

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

Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized. (9. February 1920)

Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later. (7. May 1920)

The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established. (8. March 1920)

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

Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states. (28. March 1920)

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

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

Former Ford Motor Company executive Henry Leland launches the Lincoln Motor Company which he later sold to his former employer. (26. January 1920)

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

The Treaty of Versailles takes effect, officially ending World War I. (10. January 1920)

In Rome, Pope Benedict XV canonizes Joan of Arc. (16. May 1920)