- Jun 1 British government grants Cyrenaica (East-Libya) independence
- Jun 1 KSL TV channel 5 in Salt Lake City, UT (CBS) begins broadcasting
- Jun 3 1st African American to graduate from US Naval Academy (Wesley Anthony Brown)
- Jun 3 Dragnet is 1st broadcast on radio (KFI in Los Angeles)
- Jun 3 GN Clark becomes 1st female US treasurer
- Jun 4 "Cavalcade of Stars" debuts (DuMont); Jackie Gleason made host in 1950
- Jun 6 "It Pays To Be Ignorant" game show debut on CBS-TV
- Jun 6 WKY (now KTVY) TV channel 4 in Oklahoma City, OK (NBC) 1st broadcast
- Jun 6 Orapin Chaiyakan becomes the first Thai woman to be elected to the Parliament of Thailand
- Jun 8 Siam changes name to Thailand
- Jun 9 Georgia Neese Clark of Kansas becomes 1st woman treasurer of US
- Jun 10 Istvan Dobi becomes Hungarian premier
- Jun 11 49th US Golf Open: Cary Middlecoff shoots a 286 at Medinah CC ILL
- Jun 11 81st Belmont: Ted Atkinson aboard Capot wins in 2:30.2
- Jun 11 Emile Zatopek runs world record 10,000m (29:28.2)
Event of Interest
- Jun 14 WROC TV channel 8 in Rochester, NY (NBC) begins broadcasting
- Jun 15 Phils Eddie Waitkus, shot by Ruth Steinhagen, 19, at Eddgewater Hotel
- Jun 16 Gas turbine-electric locomotive demonstrated at Erie, Pennsylvania
- Jun 18 "Along Fifth Avenue" closes at Broadhurst Theater NYC after 180 performances
- Jun 20 Central Intelligence Agency Act passes
Boxing Title Fight
Jun 22 Ezzard Charles beats Jersey Joe Walcott in 15 for National Boxing Association world heavyweight title
Ezzard Charles
Jersey Joe
- Jun 23 First twelve women graduate from Harvard Medical School
- Jun 23 Dutch Constellation aircraft plunges into the sea near Bari, 33 die
- Jun 24 "Hopalong Cassidy" becomes 1st network western (NBC)
- Jun 24 A M de Jong's murderer, Ton van Gog, arrested in Scheveningen, Netherlands
- Jun 24 Cargo airlines 1st licensed by US Civil Aeronautics Board
- Jun 25 Presidential election in Syria (some women allowed to vote)
- Jun 25 Long-Haired Hare is released in Theaters starring Bugs Bunny.
- Jun 26 1st Belgian parliamentary election where women can vote (CVP gains)
- Jun 27 "Captain Video & His Video Rangers" debut on DUMONT-TV
- Jun 29 South Africa begins implementing apartheid; no mixed marriages
- Jun 29 US troops withdraw from Korea after WW II
- Jun 30 Dutch troops evacuate Jakarta