- Sep 1 1st conference of neutral countries held in Belgrade
- Sep 1 USSR performs nuclear test at Eastern Kazakh/Semipalitinsk USSR
- Sep 1 The Eritrean War of Independence officially begins with the shooting of the Ethiopian police by Hamid Idris Awate
Radio Premiere
Sep 4 Carol Burnett-Richard Hayes Show premieres on CBS radio
- Sep 4 US authorizes Agency for International Development
Sports History
Sep 10 Mickey Mantle becomes 7th to hit HR # 400
US Men's Tennis Open
Sep 10 US National Championship Men's Tennis, Forest Hills, NY: In an all-Australian final Roy Emerson beats Rod Laver 7-5, 6-3, 6-2; Emerson's second Grand Slam title
US Open Women's Tennis
Sep 10 75th US National Championship Women's Tennis, Forest Hills, NY: Defending champion Darlene Hard beats England's Ann Jones 6-3, 6-4
Historic Event
Sep 12 NASA civilian pilot Joseph A. Walker takes X-15 to 34,840 m
- Sep 12 USSR performs nuclear test at Novaya Zemlya USSR
- Sep 13 Battles between UN & Katanga troops in Congo
- Sep 13 USSR performs nuclear test at Eastern Kazakh/Semipalitinsk USSR
- Sep 13 USSR performs nuclear test at Novaya Zemlya USSR
- Sep 13 Unmanned Mercury-Atlas 4 launched into Earth orbit
- Sep 14 USSR performs nuclear test at Novaya Zemlya USSR
- Sep 15 61st US Golf Amateur Championship won by Jack Nicklaus aged 21
- Sep 16 CDU loses West German election
- Sep 16 USSR performs nuclear test at Novaya Zemlya USSR
- Sep 16 WLKY TV channel 32 in Louisville, Kentucky (ABC) begins broadcasting
- Sep 17 "Car 54, Where are You?" premieres on US TV
- Sep 17 Minnesota Vikings' 1st NFL game (beat Chicago Bears 37-13)
Historic Event
Sep 17 Samuel Beckett's "Happy Days," premieres in NYC
- Sep 17 USSR performs nuclear test at Eastern Kazakh/Semipalitinsk USSR
Sports History
Sep 17 Fran Tarkenton plays his first NFL Game against the Chicago Bears, coming off the bench to lead the Vikings to a 37-13 victory, also becoming the only QB to throw four touchdown passes in his first career game
Historic Event
Sep 20 African-American student James Meredith is refused enrolment to the segregated University of Mississippi
- Sep 20 USSR performs nuclear test at Novaya Zemlya USSR
Baseball Record
Sep 20 Roger Maris hits home run # 59 & barely misses # 60 in game 154 of the season. Yanks clinch pennant #26
- Sep 21 Antonio Abertondo swims English Channel both ways (44 miles)
- Sep 21 Maiden flight of the CH-47 Chinook transportation helicopter.
- Sep 22 Antonio Albertondo (Argentina) completes 1st "double" crossing swim of English Channel in 43 hrs 10 min at 42.
- Sep 22 Jim Gentile's ties record of 5 grand slams in a year
- Sep 22 "Threnody to the Victims of Hiroshima" by Polish composer Krzysztof Penderecki premieres at Warsaw Autumn Festival, Andrzej Markowski conducting Krakow Philharmonic
- Sep 23 1st movie to become a TV series, "How to Marry a Millionaire" premieres
- Sep 25 KTPS TV channel 62 in Tacoma, WA (PBS) begins broadcasting
- Sep 26 "From the Second City" opens at Royale Theater NYC for 87 performances
- Sep 26 Roger Maris hits HR #60 off Jack Fisher, tying Babe Ruth's record
Baseball Record
Sep 27 Sandy Koufax sets NL strikeout season record at 269
Television Debut
Sep 28 "Hazel" starring Shirley Booth debuts on NBC-TV
- Sep 28 "Purlie Victorious", a farce by Ossie Davis, opens on Broadway
- Sep 28 Syria withdraws from United Arab Republic
- Sep 28 USN Comdr Forrest S Petersen takes X-15 to 30,720 m
- Sep 28 Walt Disney's movie "Grey Friars Bobby" premieres
- Sep 28 American medical drama series "Dr. Kildare", starring Richard Chamberlain and Raymond Massey, premieres on NBC-TV
- Sep 29 "Detectives" TV Crime Drama; moves to NBC-TV
