* 1939 – 1945, the Second Battle of the Atlantic.

Subsequent formalizations were framed as attempts to define " effective calculability " or " effective method "; those formalizations included the Gödel – Herbrand – Kleene recursive functions of 1930, 1934 and 1935, Alonzo Church's lambda calculus of 1936, Emil Post's " Formulation 1 " of 1936, and Alan Turing's Turing machines of 1936 – 7 and 1939.

* 1890 – Anthony Fokker, Dutch aviation engineer ( d. 1939 )

* 1939 – André Ouellet, French-Canadian politician

* 1852 – Ferdinand von Lindemann, German mathematician ( d. 1939 )

* 1939 – Alan Ayckbourn, English writer

* 1939 – Johnny Raper, Australian rugby league footballer

* 1939 – The 1939-40 New York World's Fair opens.

* 1939 – NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N. Y. World's Fair opening day ceremonial address.

* 1939 – First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.

* 1939 – William Least Heat-Moon, American author

* 1939 – Edward Patten, American singer-songwriter and producer ( Gladys Knight & the Pips ) ( d. 2005 )

* 1939 – Bulle Ogier, French actress

* 1939 – Romano Prodi, Italian politician and statesman

* 1939 – Hércules Brito Ruas, Brazilian footballer

* 1939 – Albert Einstein and Leó Szilárd write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.

* 1939 – Benjamin Barber, American theorist

* 1939 – Wes Craven, American director

* 1939 – John W. Snow, American politician, 73rd United States Secretary of the Treasury

* 1984 – Marvin Gaye, American singer ( The Moonglows ) ( b. 1939 )

* 2001 – Trinh Cong Son, Vietnamese composer ( b. 1939 )

Eastern European theorists include Pyotr Stolypin ( 1862 – 1911 ) and Alexander Chayanov ( 1888 – 1939 ) in Russia ; Adolph Wagner ( 1835 – 1917 ), and Karl Oldenberg in Germany, and Bolesław Limanowski ( 1835 – 1935 ) in Poland.

Sir Harold ( Harry ) Walter Kroto, FRS ( born 7 October 1939 as Harold Walter Krotoschiner ), is a British chemist and one of the three recipients to share the 1996 Nobel Prize in Chemistry with Robert Curl and Richard Smalley.

Frank Baum's grave in one of the films, whose younger brother Harold Rosson photographed The Wizard of Oz ( 1939 ).

* 1997 – Harold Melvin, American singer ( Harold Melvin & the Blue Notes ) ( b. 1939 )

* 1939 – Harold Kroto, English chemist, Nobel Prize laureate

Stephen Fienberg describes the evolution from " inverse probability " at the time of Bayes and Laplace, a term still used by Harold Jeffreys ( 1939 ), to " Bayesian " in the 1950s.

Examples of performers who went on to universal recognition are Jeremy Brett, Judi Dench, Rosemary Harris, Ian McKellen, Christopher Plummer, Harold Pinter, Imelda Staunton, Lynn Redgrave, Vanessa Redgrave, Patrick Stewart, Geraldine McEwan, Ronnie Barker, Dirk Bogarde, who wrote about his start at tiny Amersham rep in 1939, and Michael Caine, who recounts his time spent at Horsham rep in the early fifties, to present just a few.

* Harold Harby, Los Angeles City Council member, 1939 – 42, 1943 – 57, worked for Richfield Oil

The film was Hitchcock's second Hollywood production since leaving the United Kingdom in 1939 ( the first was Rebecca ) and had an unusually large number of writers: Robert Benchley, Charles Bennett, Harold Clurman, Joan Harrison, Ben Hecht, James Hilton, John Howard Lawson, John Lee Mahin, Richard Maibaum, and Budd Schulberg, with Bennett, Benchley, Harrison, and Hilton the only writers credited in the finished film.

* Harold Winch ( 1939 – 1953 )

* Harold Temperley, ( 1879 – 1939 ), British

* Sir Harold Baxter Kittermaster: 21 September 1934 – 20 March 1939

The Art & Language group was founded in 1967 / 8 in the United Kingdom by artists Terry Atkinson ( b. 1939 ), David Bainbridge ( b. 1941 ), Michael Baldwin ( b. 1945 ) and Harold Hurrell ( b. 1940 ), four artists who began collaborating around 1966 while teaching art in Coventry.

Ray Stevens ( born Harold Ray Ragsdale, January 24, 1939 ) is an American country music, pop singer-songwriter who has become equally well known for his serious material as he has for his novelty songs.

Harold Edward Stassen ( April 13, 1907 – March 4, 2001 ) was the 25th Governor of Minnesota from 1939 to 1943.

The song was originally written by George Harold Sanders and Clarence Z. Kelley and published in 1939.

The platform design remains the same as when opened in 1939, and was designed by Harold Stabler.

The platform design remains the same as when opened in 1939, and was designed by Harold Stabler.

The current logo ( on which the Saul Bass logo was apparently modeled ) was painted by Haddon Sundblom sometime between 1939 and 1941 using fellow Coca Cola artist Harold W. McCauley as the model.

" Lydia, the Tattooed Lady " is a 1939 song written by Harold Arlen and Yip Harburg.

* Thomas Harold Raymond Harmsworth, 3rd Baron Harmsworth ( born 1939 )

* Harold Harby, Los Angeles City Council member, 1939 – 42, 1943 – 57, praised her singing

* 2002-2004 Sir Harold Kroto ( 1939 -)