WHAT ALL HAPPENED JANUARY TO SEPTEMBER 1921
Find out what all happened January to September 1921

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

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

Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution. (21. February 1921)

Former President of the United States William Howard Taft is sworn in as 10th Chief Justice of the U.S. Supreme Court, becoming the only person ever to hold both offices. (11. July 1921)

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

Nahalal, the first moshav in Palestine, is settled as part of a Zionist plan to colonize Palestine and creating a Jewish state, later to be Israel. (11. September 1921)

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

Tannu Uriankhai, later Tuvan People's Republic is established as a completely independent country (which is supported by Soviet Russia). (14. August 1921)

Major League Baseball Commissioner Kenesaw Mountain Landis confirms the ban of the eight Chicago Black Sox, the day after they were acquitted by a Chicago court. (3. August 1921)

Researchers at the University of Toronto led by biochemist Frederick Banting prove that the hormone insulin regulates blood sugar. (27. July 1921)

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

Rezā Shāh takes control of Tehran during a successful coup (21. February 1921)

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

British airship R-38 experiences structural failure over Hull in England and crashes in the Humber estuary. Of her 49 British and American training crew, only 4 survive. (23. August 1921)

A storage silo in Oppau, Germany, explodes, killing 500-600 people. (21. September 1921)

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

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

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