- Aug 5 Warsaw, evacuated by the Russians, is occupied by Germans
- Aug 5 The Latin-American Conference Convenes in Washington, with representatives from leading South American nations joining the US to discuss conditions in Mexico
- Aug 6 The British land more troops at Suvla Bay on the northern shore of Gallipoli in an effort to break the stalemate on the peninsula during WWI
- Aug 7 WWI: Assault against Russell's Top at Gallipolis, Turkey - 232 Australians are killed
- Aug 7 Dario Resta, driving a Peugeot, wins the first Champ Car race ever to average over 100mph at a 100-mile race in Chicago; average speed 101.8mph
- Aug 9 British attack at Chanak Bair at Gallipoli during WWI
Event of Interest
Aug 9 British naval officer David Beatty is confirmed in the rank of vice-admiral
David Beatty
- Aug 12 "Of Human Bondage" by William Somerset Maugham, published
- Aug 14 British transport Royal Edward sank by German U boat kills 1000
- Aug 15 Journalist Albert Siegfried Bettelheim, convicted of murder in Georgia
- Aug 16 KC's Alex Main no-hits Buffalo (Federal League), 5-0
- Aug 17 German troops over run Kovno, Lithuania
- Aug 17 Hurricane strikes Galveston, Texas (275 killed)
- Aug 17 Mob lynches Jewish businessman Leo Frank in Cobb County, Georgia, after death sentence for murder of 13-year-old girl commuted to life
- Aug 18 Braves Field opens in Boston to see Braves beat Cards 3-1
- Aug 19 Rationing laws go into effect in Netherlands
- Aug 19 World War I: the Battle of Van begins
- Aug 19 British liner "SS Arabic" sunk by German submarine without warning leaving Liverpool for New York; killing 44. Creates diplomatic incident
- Aug 20 White Sox obtain Joe Jackson from Cleve in exchange for Robert Roth, Larry Chappell, Ed Klepfer, & $31,500
- Aug 21 Italy declares war on Turkey in World War One
- Aug 21 Australasian Championships Men's Tennis, Brisbane: Englishman Gordon Lowe beats Horace Rice of Australia 4-6, 6-1, 6-1, 6-4
- Aug 23 Tsar Nicolaas II takes control of Russian Army
- Aug 25 Hurricane kills 275 in Galveston, Texas with $50 million damage
- Aug 26 German troops overrun Brest-Litovsk, Russia
- Aug 31 Chicago White Sox Jimmy Lavender no-hits NY Giants, 2-0
- Aug 31 Brazil becomes a signatory to the Buenos Aires copyright treaty.