- Aug 1 First Scout camp opens on Brownsea Island, in Poole Harbour, Dorset
- Aug 1 U.S. Army Signal Corps establish a small Aeronautical Division
Walter Johnson's First Game
Aug 2 Legendary pitcher Walter Johnson at 19 begins his 21 year Baseball Hall of Fame playing career with Washington with 3-2 loss v Detroit
- Aug 3 Emperor Wilhelm (Germany) meets with Tsar Nicholas (Russia) to discuss Germany's plan to build a railroad to Baghdad; the discussion helps move Russia towards Britain and eventually the Triple Alliance
- Aug 4 Tour de France: Lucien Petit-Breton of France beats countryman Gustave Garrigou to win first of 2 Tour victories
- Aug 7 MLB Washington Senators legendary pitcher Walter Johnson wins first of his 416 career wins, 7-2 v Cleveland
- Aug 9 1st Boy Scout camp concludes at Brownsea Island in Poole Harbour, Southern England
- Aug 10 Prince Scipone Borchesi wins Beijing to Paris, 7,500 mile auto rally
- Aug 11 St Louis Cardinals pitcher Ed Karger throws a perfect game vs Boston Doves; wins 4-0 in 7 innings at Robison Field, St. Louis
- Aug 13 1st taxicabs operate in New York City, imported by Harry N. Allen
- Aug 16 Mulay Hafid is proclaimed the Sultan of Morocco by supporters leading to civil war; Mulay is supported by Germany while France supports the existing Sultan
- Aug 17 Bishop forbids Christian membership of Dutch Textile Union
- Aug 23 Pittsburgh Pirates pitcher Howie Camnitz no-hits NY Giants, 1-0 in 5 inning game at the Polo Grounds, NYC
- Aug 24 Australasian Championships Men's Tennis, Brisbane : Australian Horace Rice beats Harry Parker of New Zealand 6-3, 6-4, 6-4
Houdini's Underwater Escape
Aug 26 Harry Houdini escapes from chains underwater in 57 seconds, at Aquatic Park in San Francisco, California
- Aug 28 United Parcel Service is founded by James E. Casey in Seattle, Washington.
US Men's Championship
Aug 28 US National Championship Men's Tennis, Newport, RI: William Larned beats Robert LeRoy 6-2, 6-2, 6-4 for his third US singles title
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists