WHAT ALL HAPPENED MARCH TO JUNE 1921
Find out what all happened March to June 1921

The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years. (1. March 1921)

Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan. (11. April 1921)

The trial of Sacco and Vanzetti opens. (24. May 1921)

Black Friday: mine owners announce more wage and price cuts, leading to the threat of a strike all across England. (15. April 1921)

Irish War of Independence: One of the biggest engagements of the war takes place at Crossbarry, County Cork. About 100 Irish Republican Army (IRA) volunteers escape an attempt by over 1,300 British forces to encircle them. (19. March 1921)

Portuguese Communist Party is founded as the Portuguese Section of the Communist International. (6. March 1921)

Serbian King Alexander I proclaimed the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution. (28. June 1921)

Workers of Buckingham and Carnatic Mills in the city of Chennai, India, begin a four-month strike. (20. June 1921)

Tulsa Race Riot: civil unrest in Tulsa, Oklahoma. (1. June 1921)

The U.S. Congress passes the Emergency Quota Act establishing national quotas on immigration. (19. May 1921)

Spanish Premier Eduardo Dato Iradier is assassinated while exiting the parliament building in Madrid. (8. March 1921)

The Royal Australian Air Force is formed. (31. March 1921)

Mongolia is proclaimed an independent monarchy, ruled by Russian military officer Roman von Ungern-Sternberg as a dictator. (13. March 1921)

The second Peace of Riga between Poland and Soviet Union. (18. March 1921)

Southwark Bridge in London is opened for traffic by King George V and Queen Mary. (6. June 1921)

İstiklal Marşı was adopted in TBMM(Turkish grand national assembly). (12. March 1921)

The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established. (2. April 1921)

U.S. President Warren G. Harding appoints former President William Howard Taft Chief Justice of the United States. (30. June 1921)

Italian Fascists shoot from the Parenzana train at a group of children in Strunjan (Slovenia): two children are killed and five wounded. (19. March 1921)

The Second Republic of Poland adopts the March Constitution. (17. March 1921)