WHAT ALL HAPPENED JUNE TO OCTOBER 1921
Find out what all happened June to October 1921

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

The first skirmishes of the Battle of Blair Mountain occur. (25. August 1921)

The British install the son of Sharif Hussein bin Ali (leader of the Arab Revolt of 1916 against the Ottoman Empire) as King Faisal I of Iraq. (27. August 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)

Adolf Hitler becomes leader of the National Socialist German Workers Party. (29. July 1921)

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

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

President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep south. (21. October 1921)

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

Belfast's Bloody Sunday: 16 people are killed and 161 houses destroyed during rioting and gun battles in Belfast, Northern Ireland. (10. July 1921)

A truce in the Irish War of Independence comes into effect. (11. July 1921)

Roscoe "Fatty" Arbuckle party in San Francisco ends with the death of the young actress Virginia Rappe: one of the first scandals of the Hollywood community. (5. September 1921)

The Harvard University football team loses to Centre College, ending a 25 game winning streak. This is considered one of the biggest upsets in college football. (29. October 1921)

16-year-old Margaret Gorman wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America. (8. September 1921)

The Communist Party of China is founded. (1. July 1921)

The Chicago Theatre opens. (26. October 1921)

George Melford's silent film, The Sheik, starring Rudolph Valentino, premiers. (21. October 1921)

The Soviet republics of Russia, Armenia, Azerbaijan, and Georgia sign the Treaty of Kars with the Grand National Assembly of Turkey to establish the contemporary borders between Turkey and the South Caucasus states. (13. October 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)