- Jul 1 1st permanent radio network-AT&T (WEAF NY & WMAF Mass)
- Jul 3 Dockers' strike in Hull, Grimsby, Cardiff and Bristol over to London
Boxing Title Fight
Jul 4 Jack Dempsey beats Tommy Gibbons on points over 15 hard fought rounds in Shelby, Montana to retain world heavyweight boxing title
- Jul 6 Wimbledon Women's Tennis: Suzanne Lenglen of France beats Kitty McKane 6-2, 6-2 for her 5th straight Wimbledon singles title
- Jul 6 Rail crash on New Zealand's main trunk line; 17 killed and 28 injured
- Jul 6 The Central Executive Committee accepts the Treaty of Union, signed in Moscow in December 1922, and the Russian Empire becomes the Union of Soviet Socialist Republics
- Jul 7 Wimbledon Men's Tennis: Bill Johnston beats fellow American Frank Hunter 6-0, 6-3, 6-1 for his only Wimbledon title
- Jul 7 Cleveland Indians set an AL record 27 runs including 13 in the 6th in 27-3 win v Boston Red Sox
- Jul 7 University of Delaware invents "junior year abroad" (at Sorbonne)
Historic Event
Jul 8 Warren G. Harding becomes 1st sitting US President to visit Alaska (Metlakahtla)
Hollywoodland
Jul 13 The Hollywood Sign is officially dedicated in the hills above Hollywood, Los Angeles. It originally reads "Hollywoodland" but the four last letters are dropped after renovation in 1949
- Jul 13 American explorer Roy Chapman Andrews discovers the first recognised dinosaur eggs, in the Gobi Desert, Mongolia
US Golf Open
Jul 15 US Open Men's Golf, Inwood CC: Amateur legend Bobby Jones captures his first career major championship, defeating Bobby Cruickshank by 2 strokes in an 18-hole Sunday playoff
- Jul 15 Italian parliament accepts new constitution
- Jul 17 Carl Mays gives up 13 runs and 20 hits in 13-0 lose to Indians
- Jul 18 British House of Lords accepts new divorce law
- Jul 19 WRC-AM in Washington, D.C. begins radio transmissions
- Jul 20 Yanks hit into a triple-play but beat A's 9-2
- Jul 21 Phillies score 12 in 6th and beat Cubs 17-4
Baseball Record
Jul 22 Washington Senators future Baseball Hall of Fame pitcher Walter Johnson becomes 1st to reach 3,000 career strikeout milestone (en route to 3,508) with 5 K's in 3-1 win over Cleveland Indians
Historic Event
Jul 29 Albert Einstein speaks on pacifism in Berlin
