* 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.

Symbolically, Marian Anderson ( a noted opera singer of her day ) sang a rendition of " America the Beautiful " on the steps of the Lincoln Memorial in 1939 after being refused use of Constitution Hall by the Daughters of the American Revolution because of her skin color.

: Mon Ami Pierrot: Songs and Fantasies ( 1917 ; illustrated by Will Bradley ); Beswick, Katherine: Columbine Wonders and Other Poems ( c. 1920 ); Bodenheim, Maxwell: " Pierrot Objects " ( 1920 ); Breed, Ida Marian: Poems for Pierrot ( 1939 ); Burt, Maxwell Struthers: " Pierrot at War " ( 1916 ); Burton, Richard: " Here Lies Pierrot " ( 1913 ); Chaplin, Ralph: Maybe, Pierrot ... ( c. 1918 ); Crane, Hart: " The Moth That God Made Blind " ( c. 1918, pub.

William Halse Rivers Rivers was the oldest of four children, with his siblings being brother Charles Hay ( 29 August 1865 – 8 November 1939 ) and sisters Ethel Marian ( 30 October 1867 – 4 February 1943 ) and Katharine Elizabeth ( 1871 – 1939 ).

* Wydarzenia 3 i 4 września 1939 r. w Bydgoszczy – „ Blutsonntag ", reproduction of text from Historia Bydgoszczy, Tom II, część druga 1939 – 1945, Marian Biskup ( ed.

Marian Anderson: the Lincoln Memorial Concert is a 1939 documentary film which documents a concert performance by African American opera singer Marian Anderson after the Daughters of the American Revolution ( DAR ) had her barred from singing in Washington D. C .' s Constitution Hall because she was black.

In 2001, the 1939 documentary film, Marian Anderson: the Lincoln Memorial Concert was selected for preservation in the United States National Film Registry by the Library of Congress as being " culturally, historically, or aesthetically significant ".

Marian Jordan took a protracted absence from the show from November 1937 to April 1939 to deal with a lifelong battle with alcoholism, although this was attributed to " fatigue " in public statements at the time.

* Marian Anderson performed the song at the Lincoln Memorial on Easter Sunday, April 9, 1939.

* Kukiel, Marian ' The fairytale life of Maria Walewska ', Warsaw 1939.

* 1939 Marian Anderson ( opera singer )

In 1939 black singer Marian Anderson sang on the steps of the Lincoln Memorial, which was considered a milestone in the civil rights movement.

Cooke disliked the crime reports she was assigned by the News, finding distasteful the paper's handling of such stories, and preferring to expand the paper's coverage of the arts-for instance, traveling at her own cost to cover Marian Anderson's historic open-air concert at the Lincoln Memorial in 1939.

* Marian Wright Edelman ( born 1939 ), American lawyer and founder of the Children's Defense Fund

Between September 1939 and July 1941, the Soviets arrested and deported nineteen Polish faculty and ex-faculty of the University of Stefan Batory, of who nine perished: Professors Stanisław Cywinski, Władysław Marian Jakowicki, Jan Kempisty, Józef Marcinkiewicz, Tadeusz Kolaczyński, Piotr Oficjalski, Włodzimierz Godłowski, Konstanty Pietkiewicz, and Konstanty Sokol-Sokolowski, the last five victims of the Katyn massacre.

* In 1939, singer Marian Anderson was denied permission to perform in Constitution Hall in Washington, because she was African American.

Marian Wright Edelman ( born June 6, 1939 ) is an American activist for the rights of children.

Marian Wright was born June 6, 1939 in Bennettsville, South Carolina In 1953, her father died when she was 14, urging in his last words, " Don't let anything get in the way of your education.

* A freighter ship built in 1917 ( originally named War Flame but known as Empire Leopard when torpedoed and sunk November 2, 1942, by the German submarine U-402 ) was bought in 1929 by the Los Angeles Steamship Company and renamed Marian Otis Chandler, holding that name until it was sold again in 1939.

* January 7 – Marian Anderson ( of 1939 fame ) becomes the first African American to perform with the New York Metropolitan Opera.

* April 9, 1939: African-American singer Marian Anderson performs before 75, 000 people at the Lincoln Memorial in Washington, D. C., after having been denied the use both of Constitution Hall by the Daughters of the American Revolution, and of a public high school by the federally controlled District of Columbia.

On 1 September 1939 he attacked a German Henschel Hs 126 reconnaissance aircraft, which was eventually shot down by Marian Pisarek.