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.

* 1930 – Gandhi raises a lump of mud and salt and declares, " With this, I am shaking the foundations of the British Empire.

* 1930 – Manuel Neri, American artist

* 1930 – Michał Życzkowski, Polish technician ( d. 2006 )

* 1930 – Félix Guattari, French philosopher and theorist ( d. 1992 )

* 1930 – Gholamreza Takhti, Iranian wrestler ( d. 1968 )

* 1930 – Judge Joseph Force Crater steps into a taxi in New York and disappears never to be seen again.

* 1930 – Abbey Lincoln, American singer-songwriter and actress ( d. 2010 )

* 1930 – Betty Boop makes her cartoon debut in Dizzy Dishes.

* 1930 – Jacques Parizeau, Canadian economist and politician

* 1930 – Don Ho, American singer and pianist ( d. 2007 )

* 1930 – Bernard Manning, English comedian ( d. 2007 )

* 1930 – Wilmer Mizell, American baseball player ( d. 1999 )

* 1930 – Vali Myers, Australian painter ( d. 2003 )

* 1930 – Cosima Wagner, Hungarian daughter of Franz Liszt and widow of Richard Wagner ( b. 1837 )

* 2012 – Jerry Lynch, American baseball player ( b. 1930 )

Iuliu Maniu ( 1873 – 1953 ) was prime minister with an agrarian cabinet from 1928 to 1930, but the Great Depression made proposed reforms impossible.

1930 ) vol 1 pp 1 – 146 covers many major thinkers down to 1800

* 1837 – Mary Harris Jones, American labor organizer ( d. 1930 )

* 1930 – Lionel Bart, English composer ( d. 1999 )

* 1930 – Pierre Bourdieu, French sociologist ( d. 2002 )

* 1930 – Julie Bovasso, American actress ( d. 1991 )

The school existed in three German cities ( Weimar from 1919 to 1925, Dessau from 1925 to 1932 and Berlin from 1932 to 1933 ), under three different architect-directors: Walter Gropius from 1919 to 1928, Hannes Meyer from 1928 to 1930 and Ludwig Mies van der Rohe from 1930 until 1933, when the school was closed by its own leadership under pressure from the Nazi regime.

In addition, El Lissitzky's book Russia: an Architecture for World Revolution published in German in 1930 featured several illustrations of Vkhutemas / Vkhutein projects there.

The epitaph on his tombstone in Göttingen are the famous lines he spoke at the conclusion of his retirement address to the Society of German Scientists and Physicians in the fall of 1930.

The day before Hilbert pronounced these phrases at the 1930 annual meeting of the Society of German Scientists and Physicians, Kurt Gödel — in a roundtable discussion during the Conference on Epistemology held jointly with the Society meetings — tentatively announced the first expression of his incompleteness theorem.

* Hilbert's radio speech recorded in Königsberg 1930 ( in German ), with English translation

* 1872 – Carl Lehle, German rower ( d. 1930 )

* 1930 – Joachim Hoffmann, German historian ( d. 2002 )

The Mellertion ( 1933 ) used a non-standard scale, Bertrand's Dynaphone could produce octaves and perfect fifths, while the Emicon was an American, keyboard-controlled instrument constructed in 1930 and the German Hellertion combined four instruments to produce chords.

He recognized that the growth in Nazi support at the 1930 elections had mainly come from the middle class and from farmers, and he was now busy building bridges to the upper middle classes and to German business.

* 1836 – Ludwig Schüler, German politician ( d. 1930 )

Including Journey's End ( 1930 ), Whale directed a dozen films for Universal Studios between 1930 and 1936, developing a style characterized by the influence of German Expressionism and a highly mobile camera.

The sequel to Erich Maria Remarque's All Quiet on the Western Front, which Universal had filmed in 1930, the novel and film follow the lives of several young German men who have returned from the trenches of World War I and their struggles to re-integrate into society.

He continued with a series of pioneering projects, culminating in his two European masterworks: the temporary German Pavilion for the Barcelona exposition ( often called the Barcelona Pavilion ) in 1929 ( a 1986 reconstruction is now built on the original site ) and the elegant Villa Tugendhat in Brno, Czech Republic, completed in 1930.

* 1930 – Friedrich Achleitner, German poet

* 1930 – Heinrich Brüning is appointed German Reichskanzler.

* 1880 – Alfred Wegener, German meteorologist and geophysicist ( d. 1930 )

* 1855 – Paul Wiesner, German sailor ( d. 1930 )

* 1907 – Horst Wessel, German Nazi and songwriter ( d. 1930 )

As nuncio during the 1920s, he had made unsuccessful attempts to obtain German agreement for such a treaty, and between 1930 and 1933 he attempted to initiate negotiations with representatives of successive German governments, but the opposition of Protestant and Socialist parties, the instability of national governments and the care of the individual states to guard their autonomy thwarted this aim.

With the sound era, films like All Quiet on the Western Front ( 1930 ) ( and its much darker German counterpart Westfront 1918 ), Howard Hawks ' Road to Glory ( 1936 ) and Grand Illusion ( 1937 ), focused on the futility of war for non-American soldiers whilst Hollywood produced American soldiers featuring in World War I comedies such as Buster Keaton's Doughboys ( 1930 ) and Wheeler & Woolsey's Half Shot at Sunrise ( 1930 ), or exciting tales of the U. S. Marine Corps putting down rebellions in Central America, China, and the Pacific Islands in films like Frank Capra's Flight ( 1930 ), The Leathernecks Have Landed ( 1936 ) and Tell it to the Marines ( 1926 film ).