- Jul 2 British parliament reduces the age at women can vote to 21 - the same as men (Representation of the People Act 1928)
- Jul 2 The Jenkins Television Corporation (owned by Charles Jenkins) goes on air with W3XK, the first television broadcasting station in the USA
Ferguson's Tractor Patent
Jul 3 Harry Ferguson granted a patent for his three-point hitch for tractors [1]
1st Demo of Color Television
Jul 3 John Logie Baird demonstrates the first colour television transmission in London
- Jul 6 1st all-talking motion picture shown in NY (Lights of NY)
- Jul 6 Largest recorded hailstone at the time 1.5 lbs (7 inches in diameter) falls in Potter, Nebraska
Wimbledon Men's Championship
Jul 6 Wimbledon Men's Tennis: In an all-French final René Lacoste beats defending champion Henri Cochet 6-1, 4-6, 6-4, 6-2
- Jul 7 American Edward Hamm sets then long jump world record at 25' 11" at Cambridge, Massachusetts
First Sliced Bread
Jul 7 Sliced bread sold for the first time by the Chillicothe Baking Company, Missouri, using a machine invented by Otto Frederick Rohwedder. Described as the greatest forward step in the baking industry since bread was wrapped.
- Jul 7 Wimbledon Women's Tennis: Helen Moody wins 2nd of 4 consecutive Wimbledon singles titles beating Lilí Álvarez 6-2, 6-3
- Jul 8 Phillies set record of errorless 25 inning doubleheader
- Jul 10 Senator Milt Gaston hurls record tying 14-hit shutout
- Jul 12 1st televised tennis match
- Jul 15 22nd Tour de France: Defending champion Nicolas Frantz of Luxembourg holds yellow jersey from start to finish; his Alcyon team has all 3 podium positions
- Jul 19 King Fuad of Egypt seizes power and disbands parliament
- Jul 20 The government of Hungary issues a decree ordering Gypsies to end their nomadic ways, settle permanently in one place, subject themselves to the same laws and taxes as other Hungarians
- Jul 26 In only his second and final defense of his world heavyweight boxing title, Gene Tunney scores an 11-round TKO win over Tom Heeney at Yankee Stadium, NYC
- Jul 26 New York Yankees score 11 runs in 12th inning, beating Tigers 12-1 in Detroit
- Jul 27 AVRO, General Vereniging Radio Omroep, forms
- Jul 27 Kent cricket leg-spinner Tich Freeman becomes only bowler ever to take 200 first-class wickets before end of July
- Jul 28 IX Summer Olympic Games open in Amsterdam, Netherlands
- Jul 29 23rd Davis Cup: France beats USA in Paris (4-1)
- Jul 29 Cleveland Indians score 17 in 1st 2 inns to beat New York Yankees 24-6 at Dunn Field they also set a record with 24 singles in 1 game
International Lawn Tennis Challenge
Jul 29 International Lawn Tennis Challenge, Paris, France: Home team retains title as Henri Cochet beats American Bill Tilden 9-7, 8-6, 6-4 for 3-1 lead; ends 4-1
Steamboat Willie
Jul 29 Test footage first created for Walt Disney's "Steamboat Willie" with Mickey Mouse
Color Motion Pictures
Jul 30 George Eastman shows first amateur color motion pictures to guests at his New York house including Thomas Edison
- Jul 31 Halina Konopacka of Poland hurls discus world record 39.62m to win first gold medal in women's Olympic athletics at the Amsterdam Games; American Lillian Copeland and Ruth Sveberg of Sweden take minor medals
- Jul 31 In the first women’s Olympic track event, American sprinter Elizabeth Robinson equals her own world record 12.2s to win 100m gold medal in Amsterdam; Canadians Fanny Rosenfeld & Ethel Smith dead-heat (12.3s)
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