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* 1939 – First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.
Some Related Sentences
1939 and –
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.
* 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 – Edward Patten, American singer-songwriter and producer ( Gladys Knight & the Pips ) ( d. 2005 )
* 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.
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.
1939 and First
Armoured trains saw use during the 19th century in the American Civil War ( 1861 – 1865 ), the Franco-Prussian War ( 1870 – 1871 ), the First and Second Boer Wars ( 1880 – 81 and 1899 – 1902 ), the First ( 1914 – 1918 ) and Second World Wars ( 1939 – 1945 ) and the First Indochina War ( 1946 – 1954 ).
During the First World War the German army used horses for logistics, 1. 4 million of them, in the 1939 – 45 war it used 2. 7 million horses.
In 1937, Charlton finished runners up in the First Division, in 1938 finished fourth and 1939 finished third.
First synthesized in 1874, DDT's insecticidal properties were not discovered until 1939, and it was used with great success in the second half of World War II to control malaria and typhus among civilians and troops.
First synthesized in 1874 by Othmar Zeidler, DDT's insecticidal properties were not discovered until 1939 by the Swiss scientist Paul Hermann Müller, who was awarded the 1948 Nobel Prize in Physiology and Medicine for his efforts.
Overt alliance with Germany was not possible due to the result of the First World War, but in general the period of 1918 to 1939 was characterised by economic growth and increasing integration to the Western world economy.
The country secured some boundary revisions from 1938 to 1941: In 1938 the First Vienna Award gave back territory from Czechoslovakia, in 1939 Hungary occupied Carpatho-Ukraine.
Critics of the textbook note the lack of detail about historical events such as the Siege of Leningrad ( 1941 – 44 ), the Gulag forced-labour camps, the Russo – Finnish Winter War ( 1939 – 40 ), the First Chechen War ( 1994 – 96 ), and the Second Chechen War ( 1999 – 2000 ), as serious factual inaccuracies ; most egregious, the critics propose, is the absence of the Holocaust ( 1933 – 45 ), and the glorification of the rule of Josef Stalin ( 1922 – 53 ).
The history textbook controversy centers upon the secondary school history textbook Atarashii Rekishi Kyōkasho (" New History Textbook ") said to minimise the nature of Japanese militarism in the First Sino-Japanese War ( 1894 – 95 ), in annexing Korea in 1910, in the Second Sino-Japanese War ( 1937 – 45 ), and in the Second World War ( 1939 – 45 ).
In July 1939, Forrest J. Ackerman gave nineteen year old Ray Bradbury the money to head to New York for the First World Science Fiction Convention in New York City, and funded Ray Bradbury's fanzine, titled Futuria Fantasia.
First lady Dolley Madison rescued a painting of George Washington, and in 1939, a Canadian man returned a jewelry box to President Franklin Delano Roosevelt, claiming that his grandfather had taken it from Washington.
After suffering a decline during the First World War and the Russian Civil War, the city resumed its growth in the late 1920s, with the expansion of various industries, iron ore and metallurgy in particular, and by 1939 its population had reached 104, 500.
He became a member of the Communist Party in 1939 and was First Secretary of the Central Committee of Komsomol in the Soviet Karelo-Finnish Republic from 1940 to 1944.
They were used by the British Royal Navy ( RN ) during the First World War and by both the RN and the United States Navy during the Second World War ( 1939 – 1945 ), as a countermeasure against German U-boats and Japanese submarines.
* 1939: First 4 MW utility power generation gas turbine from BBC Brown, Boveri & Cie. for an emergency power station in Neuchâtel, Switzerland.
First to be introduced were their northern descendants — the " Rangers ", and the southern people appeared when Tolkien pondered in 1939 over the course of the narrative following the Council of Elrond.
In La Grande Illusion, director Jean Renoir uses the First World War ( 1914 – 1918 ) as a lens through which to examine Europe as it faces the rising spectre of fascism ( especially in Nazi Germany ) and the impending approach of the Second World War ( 1939 – 1945 ).
War memorials include those commemorating the First Anglo-Afghan War ( 1841 – 42 ), the First World War ( 1914 – 18 ), and the Second World War ( 1939 – 45 ).