Editing 1921 (section)

=== July ===
{{Main|July 1921}}
* [[July 1]] 
** The [[Chinese Communist Party]] (CCP) is founded.{{citation needed|date=May 2025}}
** The first [[Bacillus Calmette-Guérin|BCG]] vaccination against [[tuberculosis]] is given, in Paris, France; the recipient is a newborn child.<ref>{{cite book|author=Unesco|title=The Unesco Courier|url=https://books.google.com/books?id=wEFPAQAAIAAJ|year=1964|publisher=UNESCO|page=11}}</ref>
* [[July 2]] &ndash; U.S. President [[Warren Harding]] signs a joint congressional resolution, declaring an end to America's state of war with Germany, Austria and Hungary.<ref>{{cite news|title=Harding Ends War; Signs Peace Decree at Senator's Home. Thirty Persons Witness Momentous Act in Frelinghuysen Living Room at Raritan.|url=https://www.nytimes.com/1921/07/03/archives/harding-ends-war-signs-peace-decree-at-senators-home-thirty-persons.html|newspaper=[[The New York Times]]|date=3 July 1921}}</ref>
* [[July 4]] &ndash; A new conservative government is formed in Italy by [[Ivanoe Bonomi]].{{citation needed|date=May 2025}}
* [[July 11]]
** The [[Irish War of Independence]] ends under the terms of the truce (signed on 9 July) which becomes effective at noon between the [[British Army]] and the [[Irish Republican Army]].{{citation needed|date=May 2025}}
** The [[Red Army]] captures [[Mongolia]] from the [[White Army]] and establishes the [[Mongolian People's Republic]].{{citation needed|date=May 2025}}
* [[July 14]] &ndash; A Massachusetts jury finds [[Sacco and Vanzetti|Nicola Sacco and Bartolomeo Vanzetti]] guilty of first degree murder following a widely publicized trial whose verdict will spark protests around the world.{{citation needed|date=May 2025}}
* [[July 17]] &ndash; The [[Republic of Mirdita]] is proclaimed near the [[Albania]]n-[[Serbia]]n border, with [[Kingdom of Yugoslavia|Yugoslav]] support.{{citation needed|date=May 2025}}
* [[July 21]] 
** [[Rif War]]: [[Battle of Annual]] &ndash; Spanish troops are dealt a crushing defeat at the hands of [[Abd el-Krim]] in Morocco.{{citation needed|date=May 2025}}
** [[Edward Harper (engineer)|Edward Harper]], the "father of broadcasting" in [[Ceylon]], arrives in [[Colombo]] to take up his post as Chief Engineer of the Ceylon Telegraph Department.<ref>{{cite book|first=Nandana |last=Karuṇānāyaka|title=Radio Broadcasting in Sri Lanka: Significant Dates & Events, 1921-1990|url=https://books.google.com/books?id=5MtkAAAAMAAJ|year=1990|publisher=Centre for Media Policy Studies|isbn=978-955-95226-0-7|page=1928}}</ref>
* [[July 23]] &ndash; [[1st National Congress of the Chinese Communist Party]] opens in Shanghai.{{citation needed|date=May 2025}} 
* [[July 26]] &ndash; U.S. President [[Warren G. Harding]] receives Princess Fatima of [[Emirate of Afghanistan|Afghanistan]] who is escorted by imposter [[Stanley Clifford Weyman]].{{citation needed|date=May 2025}}
* [[July 27]] &ndash; Researchers at the [[University of Toronto]], led by biochemist [[Frederick Banting]], announce the discovery of the hormone [[insulin]].{{citation needed|date=May 2025}}
* [[July 29]] &ndash; [[Adolf Hitler]] becomes ''[[Führer]]'' of the [[Nazi Party]] in Germany.{{citation needed|date=May 2025}}

[[File:Harvard Square aerial 1921.jpg|thumb|right|An aerial view of Harvard Square in 1921]]