The National Speleological Society of the USA was later founded in 1941 ( originally formed as the Speleological Society of the District of Columbia on May 6, 1939 ) and the Swiss Society of Speleology created in 1939 in Geneva, but the first speleological institute in the world was founded in 1920 in Cluj-Napoca, Romania, by Emil Racovita, a Romanian biologist, zoologist, speleologist and explorer of Antarctica.

David Warren " Dave " Brubeck ( born December 6, 1920 ) is an American jazz pianist.

This encouraged population growth, and the town grew from 4, 500 inhabitants in 1920 to 6, 000 in 1936.

* 1920 – The second Palmer Raid takes place with another 6, 000 suspected communists and anarchists arrested and held without trial.

( 6 January 1920 – 19 April 2004 ) was a British theoretical evolutionary biologist and geneticist.

6: 1911 – 1919 ) ( Cambridge: University Press, 1899 – 1920, reissued by the publisher 2011, ISBN 978-0-511-70401-7 )

In 1920 the candidate of the German Party, Ernst Barczewski, was elected to the Sejm with 74. 6 percent of votes and to the Polish Senate with 34. 6 % of votes for the Bloc of National Minorities in 1928.

Federal spending declined from $ 6. 3 billion in 1920 to $ 5 billion in 1921 and $ 3. 3 billion in 1922.

Portugal: Included in total are 6, 000 killed or missing in action and died of wounds Total war dead reported by British War Office were 7, 022 including the following: killed and died of other causes up until January 1, 1920 ; 1, 689 in France and 5, 333 in Africa.

* April 6 – Isaac Asimov, Russian-born author ( b. 1920 )

* November 6 – Gene Tierney, American actress ( b. 1920 )

* April 6 – Jeanne Hébuterne, French painter ( d. 1920 )

* January 6 – Max Bruch, German composer ( d. 1920 )

* 6 May 1910 – 4 June 1920: His Royal Highness The Prince Albert

* Pfohl, Ferdinand: 5 poems (" Moon-rondels, fantastic scenes from ' Pierrot Lunaire '") for voice and piano ( 1891 ); Marschalk, Max: 5 poems for voice and piano ( 1901 ); Vrieslander, Otto: 50 poems for voice and piano ( 46 in 1905, 4 more in 1911 ); Graener, Paul: 3 poems for voice and piano ( c. 1908 ); Marx, Joseph: 4 poems for voice and piano ( 1909 ; 1 of 4, " Valse de Chopin ", reset for voice, piano, and string quartet in 1917 ); Schoenberg, Arnold: 21 poems for speaking voice, piano, flute ( also piccolo ), clarinet ( also bass clarinet ), violin ( also viola ), and violoncello ( 1912 ); Kowalski, Max: 12 poems for voice and piano ( 1913 ); Prohaska, Carl: 6 poems for voice and piano ( 1920 ); Lothar, Mark: 1 poem for voice and piano ( 1921 ).

Duo-Art recording 5973-4 played on a Steinway grand piano model XR 6 ' 2 " Duo-Art from 1920.

Robert Edwin Peary, Sr. ( May 6, 1856 – February 20, 1920 ) was an American explorer who claimed to have led the first expedition, on April 6, 1909, to reach the geographic North Pole.

* An Anthology of Noise & Electronic Music, Volumes 1 – 6 Sub Rosa, Various Artists ( 1920 – 2010 )

On 6 January 1920 Prince Faisal initialed an agreement with French Prime Minister Clemenceau which acknowledged " the right of the Syrians to unite to govern themselves as an independent nation ".

" New York Times 16 Feb 1920: 15: 6.

The population of Kensington was 226 in 1920, 1, 423 in 1930, 3, 355 in 1940, and reached a peak of 6, 601 in 1950.

Stockbridge was incorporated as a town in 1895 and as a city August 6, 1920.

The Black and Tans were not subject to strict discipline in their early months in Ireland and as a result, their deaths at the hands of the IRA in 1920 were often repaid with arbitrary reprisals against the civilian population.

However, since 29 December 1920, the British government had sanctioned " official reprisals " in Ireland — usually meaning burning property of IRA men and their suspected sympathisers.

Since their establishment as a Major League franchise in 1901, the Indians have won two World Series championships, in 1920 and 1948.

Distributist ideas were put into practice by The Guild of St Joseph and St Dominic, a group of artists and craftsmen who established a community in Ditchling, Sussex, England, in 1920, with the motto ' Men rich in virtue studying beautifulness living in peace in their houses '.

Based on George Griffith's Stories Of Other Worlds, it contains six stories, the illustrations from their original publication, a worldbook taking the story forward to 1920, a spaceship design spreadsheet, five adventures, plus the novelisation A Honeymoon In Space.

In 1920 after the defeat of the Russian White army of General Pyotr Wrangel, a significant number of emigre soldiers and their families evacuated to Gallipoli from the Crimea.

Members of a second Albanian National Assembly held at Lushnjë in January 1920 rejected the partition plan and warned that Albanians would take up arms to defend their country's independence and territorial integrity.

* 1920 – During the U. S. Republican National Convention in Chicago, U. S. Republican Party leaders gathered in a room at the Blackstone Hotel to come to a consensus on their candidate for the U. S. presidential election, leading the Associated Press to first coin the political phrase " smoke-filled room ".

Many Kazakhs and Russian fought the communist takeover and resisted their control until 1920.

Initially the division of the Arabic-speaking areas of the Ottoman Empire were to be divided by the Sykes-Picot Agreement ; however, the final disposition was at the San Remo conference of 1920, whose determinations on the mandates, their boundaries, purposes and organization was ratified by the League in 1921 and put into effect in 1922.

Pickford and Fairbanks produced and shot their films after 1920 at the jointly owned Pickford-Fairbanks studio on Santa Monica Boulevard.

Around 1920, the term organelle was used to describe propulsion structures (" motor organelle complex ", i. e., flagella and their anchoring ) and other protist structures, such as ciliates.

* In the July 10, 1920 issue of The Illustrated London News, G. K. Chesterton took issue with both pessimists ( such as Spengler ) and their optimistic critics, arguing that neither took into consideration human choice: " The pessimists believe that the cosmos is a clock that is running down ; the progressives believe it is a clock that they themselves are winding up.

This was clearly shown in their obituary cartoon with the caption: Roy Jenkins, 1920 – 2003.

During their September run, the Giants ' pitching staff allowed no more than 3 runs for 18 straight games, the longest single-season streak since 1920.

The British tested their ASDIC on HMS Antrim in 1920, and started production in 1922.

In March 1920 Molly MacCarthy began a club to help Desmond and herself write their memoirs ; and also " for their friends to regroup after the war ( with the proviso that they should always tell the truth )", thus bringing the members of Old Bloomsbury back together.

There are many ghost towns, or semi-ghost towns ( some of them unincorporated communities ), in the American Great Plains, the rural areas of which have lost a third of their population since 1920.

The film covers the life of John Reed and Louise Bryant from their first meeting to Reed's final days in 1920 Russia.

Arthur Stanley Eddington first suggested in 1920 that stars obtain their energy by fusing hydrogen to helium, but this idea was not generally accepted because it lacked nuclear mechanisms.

On the same English Literature course was Robert Graves, and the two were close friends during their time at Oxford together, but Blunden found university life unsatisfactory and left in 1920 to take up a literary career, at first acting as assistant to Middleton Murry on the Athenaeum magazine.

As soon as they learned that Berlin had been occupied by Marinebrigade Ehrhardt on the morning of 13 March 1920, Trotha and Raeder issued a proclamation declaring that the Weimar Republic had ended, declared their loyalty to Kapp " government ", and ordered the Navy to seize Wilhelmshaven and Kiel for the putsch.

In 1920, the British launched their fifth and final expedition against Hassan and his followers.