- Aug 4 MLB pitching duel; Philadelphia A's Jack Coombs and White Sox Ed Walsh pitch a 0-0 tie in 16 innings
- Aug 6 NYC Mayor Wm J Gaynor seriously wounded during assassination attempt
- Aug 8 The US Army installs the first tricycle landing gear on the Army's Wright Flyer.
- Aug 9 Chicago resident Alva Fisher receives US patent for an electric washing machine
- Aug 13 Brooklyn Superbas and Pittsburgh Pirates play "the game of perfect symmetry" in baseball to 8-8 tie, both have 8 runs, 13 hits, 2 errors, 12 assists, 5 strikeouts, 3 walks, 1 hit baseman, and 1 passed ball
- Aug 14 6th International Congress of Esperantists held in Washington, D.C.
- Aug 20 US supported opposition brings down Madriz in Nicaragua
- Aug 22 Japan annexes Korea after 5 years as a protectorate
- Aug 23 Fred Clarke makes a record 4 outfield assists for Pittsburgh
- Aug 25 Yellow Cab is founded.
- Aug 25 US National Championship Men's Tennis, Newport, RI: William Larned beats Tom Bundy 6-1, 5-7, 6-0, 6-8, 6-1 for his 4th consecutive US singles title
- Aug 27 Using twenty 137,000 candlepower arc lights, 2 amateur baseball teams play a night game at White Sox Park
- Aug 27 Wash Red Killefer sacrifices record 4 times against Detroit
- Aug 28 Nicholas I of Montenegro again proclaims himself king (first assumed power 1860) after his reign interrupted by Turkish rule
- Aug 29 Japan changes Korea's name to ChÅsen and appoints a governor-general to rule its new colony
- Aug 30 Yank Tom Hughes pitches 9 no-hit innings but loses to Cleveland 5-0 in 11
Historic Event
Aug 31 Theodore Roosevelt makes a speech in Kansas advocating a 'square deal': property shall be 'the servant and not the master of the commonwealth'
