Not until F. W. Winterbotham's book The Ultra Secret was published in 1974 did ex-Bletchley Park staff feel free to reveal something of their wartime work.

in theater arts from Mount Holyoke College in 1974 and her M. F. A.

* 1974 – Northwest Orient Airlines Flight 6231, crashes northwest of John F. Kennedy International Airport.

Codd went on to define the Second Normal Form ( 2NF ) and Third Normal Form ( 3NF ) in 1971, and Codd and Raymond F. Boyce defined the Boyce-Codd Normal Form ( BCNF ) in 1974.

* Molina, Mario and F. Sherwood Rowland ( 1974 ).

* Hambly, Wilfrid Dyson ( 1925 ) The History of Tattooing and Its Significance: With Some Account of Other Forms of Corporal Marking, London: H. F .& G. Witherby ( reissued: Detroit 1974 )

* C F Ives, " The Great Wave: The Influence of Japanese Woodcuts on French Prints ", 1974, The Metropolitan Museum of Art, ISBN 0-87099-098-5

The record high temperature on the South Rim was 105 ° F on June 26, 1974, and the record low temperature was − 20 ° F on January 1, 1919, February 1, 1985, and December 23, 1990.

Oliver F. Atkins ' photo of Nixon leaving the White House shortly before his resignation became effective, August 9, 1974

Oliver F. Atkins ' photo of Nixon leaving the White House shortly before his resignation became effective, August 9, 1974

Of the history of the indigenous population of California, Sherburne F. Cook ( 1896 – 1974 ) was the most painstakingly careful researcher.

" Deriving ethnic names from pottery styles is one of the most deplorable habits in archaeology ," F. J. Tritsch asserted in 1974.

* Schaafsma, Polly ; & Schaafsma, Curtis F. ( 1974 ).

* Everard, J. E. & Fourt, D. F. ( 1974 ).

* Diekstra, F. N. M. 1974.

* John F. Peto ( 1974 ), " Old Scraps "

Through the years of the Cold War McDonnell Douglas had introduced and manufactured dozens of successful military aircraft, including the F-15 Eagle in 1974, the F / A-18 Hornet in 1978, and other products such as the Harpoon and Tomahawk missiles.

On 14 May 1974, it launched a regular service to New York City-( John F. Kennedy International Airport ).

* Clauser, 1974: J. F. Clauser and M. A. Horne, Experimental consequences of objective local theories, Phys.

The highest temperature ever recorded in Antarctica was 14. 6 ° C ( 58. 3 ° F ) in two places, Hope Bay and Vanda Station, on January 5, 1974.

He entered Dallas Theological Seminary in 1958 ( with the help of Lt. Col. Robert Thieme, pastor of Berachah Church in Houston, which Lindsey had attended ) where he studied with John F. Walvoord, author of the 1974 best-seller Armageddon, Oil, and the Middle East Crisis.

* F. L. Millner: ‘ Hasse and London ’ s Opera of the Nobility ’, MR, xxxv ( 1974 ), 240 – 46

* F for Fake ( 1974 )

* Cheshire, D. F., Music Hall in Britain, ( Newton Abbot: David & Charles, 1974 )

* Watson, A. M. ( 1974 ).

Russian abacus began to lose popularity only after the mass production of microcalculators had started in the Soviet Union in 1974.

Rethinking the Angolan Crisis and the Portuguese Revolution, 1974 – 1976, Itinerario: European Journal of Overseas History, 26 / 2, 2000, pp. 22 – 44

In 1974 / 75, up to 250, 000 Cuban soldiers arrived in Angola to help the MPLA forces during the decolonisation conflict.

First published 1974 by Morrow.

New catalog entries of the remaining 15, 000 American feature films produced between 1974 and present day are incorporated every year.

Albert Finney played Poirot in 1974 in the cinematic version of Murder on the Orient Express.

In 1974, Barbara Mullen played Miss Marple in Murder at the Vicarage at the Savoy Theatre, London.

* 1974 – Belinda Emmett, Australian actor ( d. 2006 )

His Elo rating shot from 2540 in 1971 to 2660 in 1973, when he shared second in the USSR Chess Championship, and finished equal first with Viktor Korchnoi in the Leningrad Interzonal Tournament, with the latter success qualifying him for the 1974 Candidates Matches, which would determine the challenger of the reigning world champion, Bobby Fischer.

* 1974 – As a direct result of the Watergate scandal, Richard Nixon becomes the first President of the United States to resign from office.

Gohlman, Albany, NY: State University of New York Press, 1974.

In the 1974 – 75 series, with the England team breaking up and their best batsman Geoff Boycott refusing to play, Australian pace bowlers Jeff Thomson and Dennis Lillee wreaked havoc.

* 1897 – Max Weber, Swiss politician ( d. 1974 )

* Stine, Harold E. The agrarian revolt in South Carolina ;: Ben Tillman and the Farmers ' Alliance ( 1974 )

* 1974 – Cyprus dispute: The United Nations Security Council authorizes the UNFICYP to create the " Green Line ", dividing Cyprus into two zones.

* 1910 – James Henry Govier, English painter ( d. 1974 )

Englishman Alan Parsons met Scotsman Eric Woolfson in the canteen of Abbey Road Studios in the summer of 1974.

* 1974 – Philippe Petit performs a high wire act between the twin towers of the World Trade Center in the air.

* 1974 – President Richard Nixon, in a nationwide television address, announces his resignation from the office of the President of the United States effective noon the next day.

* 1905 – André Jolivet, French composer ( d. 1974 )

* 1974 – Watergate Scandal: President Richard Nixon announces the release of edited transcripts of White House tape recordings relating to the scandal.

* 1974 – The second Turkish invasion of Cyprus begins ; 140, 000 to 200, 000 Greek Cypriots become refugees.

* 1974 – Yuk Young-soo, First Lady of South Korea, is killed during an apparent assassination attempt upon President of South Korea, Park Chung-hee.