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 – Wilfried Hilker, German football referee

* 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 )

It was recorded with musical accompaniment for the first time in 1930 by Fiddlin ' John Carson, although to another folk hymn named " At the Cross ", not to " New Britain ".

In 1930, Capone's sister Mafalda married John J. Maritote at St. Mary of Częstochowa, a massive Neogothic edifice towering over Cicero Avenue in the Polish Cathedral style.

Band structure calculations was first used in 1930 to predict the properties of new materials, and in 1947 John Bardeen, Walter Brattain and William Shockley developed the first semiconductor-based transistor, heralding a revolution in electronics.

Irving Fisher in his 1930 book " The Theory of Interest " and John Burr Williams's 1938 text ' The Theory of Investment Value ' first formally expressed the DCF method in modern economic terms.

* 1930 – John A.

Hoover attempted to appoint John J. Parker of North Carolina to the Supreme Court in 1930 to replace Edward Sanford.

) Tracy and Bogart appeared in their only film together in John Ford's early sound film Up the River ( 1930 ), with both playing inmates.

* John M. Ford ( Shreveport ) ( 1880 – 1965 ), American local-level executive ; city's longest-serving official ; mayor ( 1918 – 1922 ); finance commissioner ( 1930 – 65 )

* John Young ( Scottish politician ) ( 1930 – 2011 ), Conservative and Unionist Member of the Scottish Parliament

* John Young ( astronaut ) ( born 1930 ), American astronaut

* 1997 – John Joseph Scanlan, Irish Catholic prelate ( b. 1930 )

* 2009 – John Keel, American journalist and author ( b. 1930 )

* 1930 – John Lemmon, English logician and philosopher ( d. 1966 )

* 1930 – John Little, Scottish footballer

John Michael Frankenheimer ( February 19, 1930 – July 6, 2002 ) was an American film and television director known for social dramas and action / suspense films.

* John Brown ( bishop ) ( born 1930 ), Anglican bishop

In the 1930 federal census, Elizabeth Weissmüller, age 49, has listed with her, her sons John P. and Peter J., and Peter's wife Dorothy.

* 1930 – John Cullum, American actor and singer

John Malcolm Fraser AC, CH, GCL, PC (; born 21 May 1930 ) is a former Liberal Party politician who was the 22nd Prime Minister of Australia.

* 2009 – John Cephas, American Piedmont blues guitarist ( Cephas & Wiggins ) ( b. 1930 )

The situation changed rapidly in the years 1925 – 1930, when working mathematical foundations were found through the groundbreaking work of Erwin Schrödinger, Werner Heisenberg, Max Born, Pascual Jordan, and the foundational work of John von Neumann, Hermann Weyl and Paul Dirac, and it became possible to unify several different approaches in terms of a fresh set of ideas.

* 1930 – John Hahn-Petersen, Danish actor ( d. 2006 )

* 1881 – John DeWitt, American athlete ( d. 1930 )

By 1930, quantum mechanics had been further unified and formalized by the work of Paul Dirac and John von Neumann, with a greater emphasis placed on measurement in quantum mechanics, the statistical nature of our knowledge of reality, and philosophical speculation about the role of the observer.