- Aug 1 Shortwave-radio link between Kootwijk and Netherland East-Indies
- Aug 3 Last US troops leave Nicaragua (there since 1912)
- Aug 4 1st Dutch government of Prime Minister Hendrikus Colijn forms
- Aug 4 US marines leave Nicaragua after 13-year occupation
- Aug 5 Plaid Cymru is formed with the aim of disseminating knowledge of the Welsh language, which is in danger of dying out
- Aug 7 League of Nation advises against Turk/Iraqi division of Mosoelgebied
- Aug 8 1st national march of Ku Klux Klan (between 25,000 and 40,000 marchers) in Washington, D.C.
- Aug 10 Hurricane strikes Borculo, 4 die
- Aug 12 KMA-AM in Shenandoah IA begins radio transmissions
- Aug 12 The first cast of Alpha Psi Omega, drawn from The Masquers of Fairmont College, West Virginia, is initiated.
- Aug 12 The tariff law comes into force in Germany, setting up tariffs for industry and agriculture based on pre-war rates.
- Aug 14 Mount Rushmore Monument first proposed
- Aug 14 The original Hetch Hetchy Moccasin Powerhouse is completed and goes on line.
- Aug 15 Norway annexes Spitsbergen
- Aug 15 White Sox Dickie Kerr, 1st appearance since winning 2 world series games in 1919
- Aug 18 Belgium & US sign treaty about war debts
- Aug 18 Cardinal Mercier warns Belgians against socialism/liberalism
- Aug 20 WJR-AM in Detroit MI begins radio transmissions
- Aug 21 Dutch football club FC Emmen is formed in the town of Emmen in north-eastern province of Drenthe in the Netherlands
US National Women's Championship
Aug 24 US National Championship Women's Tennis, Forest Hills, NY: Helen Wills Moody beats Kitty McKane of England 3-6, 6-0, 6-2 for her third straight US singles title
- Aug 25 Brotherhood of Sleeping Car Porters organizes (Harlem NY)
- Aug 25 Last Belgian troops vacate Duisburg
- Aug 28 Meteorite falls on Ellemeet, Schouwen, Devil Island
- Aug 29 After a night on the town, Babe Ruth shows up late for batting practice Miller Huggins suspends Ruth & slaps a $5,000 fine on him
- Aug 30 6th Iron pilgrim at Diksmuide Belgium
Mead Arrives in Samoa
Aug 31 Anthropologist Margaret Mead first arrives in Samoa
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists