- Apr 1 1st British ombudsman Sir Edward Compton begins work
- Apr 1 The United States Department of Transportation begins operation.
- Apr 3 113 East Europeans attending World Amateur hockey championships in Vienna, ask for political asylum
- Apr 3 WNYE TV channel 25 in Brooklyn, NY (PBS) begins broadcasting
- Apr 4 Amsterdam Marines chase "Nozems" or rebellious youth out of Central Station
- Apr 4 Dutch De Young government forms
NBA Record
Apr 5 '76er Wilt Chamberlain sets NBA record of 41 rebounds
- Apr 5 ATS II launched but fails to reach orbit
Event of Interest
Apr 6 Premier Georges Pompidou forms new French government
- Apr 7 Israeli Syrian border fights
- Apr 7 Tom Donahue, San Francisco DJ begins new radio format - Progressive (KMPX-FM)
- Apr 8 121st Grand National: John Buckingham aboard rank 100/1 outsider Foinavon avoids famous carnage to win by 15 lengths from favourite Honey End
- Apr 8 12th Eurovision Song Contest: Sandie Shaw for United Kingdom wins singing "Puppet on a String" in Vienna
- Apr 9 "At the Drop of Another Hat" closes at Booth NYC after 105 performances
- Apr 9 1st Boeing 737 (a 100 series) makes its maiden flight
- Apr 9 31st US Masters Tournament, Augusta National GC: Gay Brewer wins his only major title by 1 stroke over runner-up Bobby Nichols
- Apr 9 Shortwave broadcaster Radio NY Worldwide's transmitter burns down
Academy Awards
Apr 10 39th Academy Awards: "A Man For All Seasons," Best Picture, Elizabeth Taylor & Paul Scofield best actress/actor
- Apr 11 "Illya Darling" opens at Mark Hellinger Theater NYC for 320 performances
Election of Interest
Apr 11 Harlem (NYC) voters defy Congress and re-elect Adam Clayton Powell Jr. in special election to fill the seat from which he had been expelled
Rosencrantz & Guildenstern are Dead
Apr 11 Tom Stoppard's play "Rosencrantz & Guildenstern are Dead" debuts in London at the Old Vic
Event of Interest
Apr 14 General Gnassingbé Eyadéma becomes President of Togo
- Apr 15 France wins its 4th outright Five Nations Rugby Championship with an 11-6 win over Ireland at Lansdowne Road, Dublin
- Apr 15 Leon Gluckman and Jeremy Taylor's folk music revue "Wait A Minim!" closes at John Golden Theater, NYC, after 457 performances
Musical Finale
Apr 16 Jimmy Van Heusen and Sammy Cahn's musical "Walking Happy", based on the 1916 novel "Hobson's Choice", "Walking Happy" closes at Lunt Fontanne Theater, NYC, after 161 performances
- Apr 17 71st Boston Marathon: Dave McKenzie of New Zealand wins in 2:15:45; American Bobbi Gibb 1st woman for 2nd straight year in 3:27:17 (unsanctioned)
Sports History
Apr 17 Italian boxer Nino Benvenuti beats American Emile Griffith in a 15 round points decision to win world middleweight crown at Madison Square Garden; start of famous trilogy of fights between the pair
- Apr 17 Shortwave Radio NY Worldwide goes back on the air after a week off
- Apr 17 Surveyor 3 launched; soft lands on Moon, April 20
- Apr 18 Jonathan Frid makes his 1st appearance as 200-year-old vampire Barnabas Collins on TV's "Dark Shadows", show becomes a huge hit
Casino Royale
Apr 19 "Casino Royale" James Bond comedy film starring David Niven and Peter Sellers premieres. Based on the Ian Fleming novel.
- Apr 19 The Beatles sign a contract agreeing to stay together for 10 years (they don't)
- Apr 19 Yugoslav author Mihaljo Mihaljov sentenced 4½ years
- Apr 20 A Globe Air Bristol Britannia turboprop crashes at Nicosia, Cyprus, killing 126.
- Apr 20 French author Régis Debray caught in Bolivia
Baseball History
Apr 20 NY Met pitcher Tom Seaver wins his 1st game, helps beat Cubs, 6-1
- Apr 20 US Surveyor 3 lands on Moon
- Apr 20 USSR performs nuclear test at the Semipalatinsk Test Site in northeast Kazakhstan
- Apr 21 Dodgers 1st rain out in Los Angeles (after 737 consecutive games)
- Apr 21 Evangelical Broadcasting begins in Netherlands
- Apr 21 Joseph Stalin's daughter Svetlana Allilueva arrives in New York City after defecting to the US
- Apr 21 Military coup in Greece, Konstantinos Kollias becomes premier
- Apr 22 Martial Law goes into effect in Greece
- Apr 23 Soyuz 1 launched; Vladimir Komarov becomes 1st in-flight casualty
- Apr 24 21st NBA Championship: Philadelphia 76ers beat SF Warriors, 4 games to 2
Vietnam War
Apr 24 American General William Westmoreland says in a Vietnam War news conference that the enemy has "gained support in the United States that gives him hope that he can win politically that which he cannot win militarily"
- Apr 25 Abortion legalized in Colorado
- Apr 25 Britain grants internal self-government to Swaziland
- Apr 25 Jules Feiffer's "Little Murders" premieres in NYC
- Apr 26 Jule Styne, Adolph Green and Betty Comden's musical "Hallelujah, Baby!", starring Leslie Uggams, opens at Martin Beck Theater, NYC; runs for 293 performances and wins 2 Tony Awards
- Apr 26 KSPS TV channel 7 in Spokane, WA (PBS) begins broadcasting
- Apr 26 San Marco 2 Launch (1st Equatorial Launch)
- Apr 27 Expo 67 opens in Montreal, Canada, featuring a giant Biosphere designed by Buckminster Fuller
- Apr 27 US performs nuclear test at Nevada Test Site
Sports History
Apr 28 Muhammad Ali refuses induction into army & stripped of boxing title
Agreement of Interest
Apr 28 The Douglas Aircraft Company behind schedule with deliveries of the DC-8 and DC-9 and close to bankruptcy agrees to merge with the McDonnell Aircraft Corporation to form McDonnell Douglas
Respect
Apr 29 Aretha Franklin releases her single "Respect" (written by Otis Redding); Billboard Song of the Year, 1967
- Apr 30 MLB Baltimore Orioles' Stu Miller & Steve Barber lose 2-1 despite no-hitting Tigers
Ostankino Tower
Apr 30 Ostankino Tower, the then highest free-standing structure in the world at 540m is finished in Moscow, Russia
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists