( Rossum's Universal Robots ) ( 1921 ) – the play that introduced the word robot to the world – were organic artificial humans, the word " robot " has come to primarily refer to mechanical humans, animals, and other beings.

* 1921 – Robert Cliche, Canadian politician and magistrate ( d. 1978 )

* 1921 – Black Friday: mine owners announce more wage and price cuts, leading to the threat of a strike all across England.

* 1921 – Tove Maës, Danish actress ( d. 2011 )

* 1921 – The British install the son of Sharif Hussein bin Ali ( leader of the Arab Revolt of 1916 against the Ottoman Empire ) as King Faisal I of Iraq.

* 1921 – Georg Alexander, Duke of Mecklenburg ( d. 1996 )

* 1921 – Leo Penn, American director ( d. 1998 )

* 1921 – Ernest Angley, American evangelist and broadcaster

* 1921 – J. James Exon, American politician ( d. 2005 )

They won the first eight matches in succession including a 5 – 0 whitewash in 1920 – 1921 at the hands of Warwick Armstrong's team.

* 2008 – Jake Warren, Canadian diplomat ( b. 1921 )

* 2012 – N. K. P. Salve, Indian politician ( b. 1921 )

The most important Canadian theorist was an American immigrant, Henry Wise Wood, president of the United Farmers of Alberta ( UFA ) during that movement's time as the governing party of the province ( 1921 – 1935 ).

* 1921 – Jack Kramer, American tennis player ( d. 2009 )

* 1921 – Major League Baseball Commissioner Kenesaw Mountain Landis confirms the ban of the eight Chicago Black Sox, the day after they were acquitted by a Chicago court.

* 1921 – Marilyn Maxwell, American actress ( d. 1972 )

* 1921 – Richard Adler, American songwriter and composer ( d. 2012 )

* 1921 – Hayden Carruth, American poet and critic ( d. 2008 )

* 1999 – Byron Farwell, American historian ( b. 1921 )

The second generation was led by Fernand Braudel ( 1902 – 1985 ) and included Georges Duby ( 1919 – 1996 ), Pierre Goubert ( 1915 – 2012 ), Robert Mandrou ( 1921 – 1984 ), Pierre Chaunu ( 1923 – 2009 ), Jacques Le Goff ( 1924 – ) and Ernest Labrousse ( 1895 – 1988 ).

The Black and Tans () were one of two ad hoc paramilitary units employed by the Royal Irish Constabulary ( RIC ) as Temporary Constables from 1920 to 1921 to suppress revolution in Ireland, the other body being the Auxiliaries.

** Royal Canadian Mounted Police — accorded the status of a regiment of Dragoons in 1921 and remained so until 1937.

The Royal Canadian Mounted Police were accorded the formal status of a regiment of dragoons in 1921.

Having played at the East Melbourne Cricket Ground from 1882 to 1921, and having won four VFA premierships ( 1891 – 1894 ) and four VFL premierships ( 1897, 1901, 1911, ( 1912 ) whilst there, Essendon were looking for a new home, and were offered grounds at the current Royal Melbourne Showgrounds, at Victoria Park, at Arden St, North Melbourne, and the Essendon Cricket Ground.

Promoted to lieutenant on 15 April 1920, he transferred to the battlecruiser HMS Repulse in March 1921 and accompanied Edward on a Royal tour of India and Japan.

* HMS Legion ( 1914 ), a Royal Navy ship sunk in 1921

#" Royal Garden Blues "/" Dangerous Blues ", 1921, Victor 18798

He was named after his father, also James Callaghan ( 1887 – 1921 ), who was of Irish descent and was a Royal Navy Chief Petty Officer.

The Elco Company may have had an advantage owing to their experience in small-boat building, having built 550 sub chasers for the Royal Navy during World War I. Additionally, in 1921, they introduced the famous " Cruisette ", ( a gasoline cabin cruiser ).

In 1921 he was elected an Associate of the Royal Academy and elected a full R. A. in 1928.

Having already been made president of the anthropological section of the British Association for the Advancement of Science in 1911, after the war he became president of the English Folk-Lore Society ( 1920 ), and the Royal Anthropological Institute ( 1921 – 1922 ).

The appellation " Abominable Snowman " was coined in 1921, the same year Lieutenant-Colonel Charles Howard-Bury led the joint Alpine Club and Royal Geographical Society " Everest Reconnaissance Expedition " which he chronicled in Mount Everest The Reconnaissance, 1921.

In May 1921, he led an ambush on a Royal Irish Constabulary patrol in Tourmakeady, County Mayo, killing four.

From 1903 until 1921 it was used as a junior officer training college for the Royal Navy known as the Royal Naval College, Osborne.

In 1921 he entered Sandhurst and in 1923 was commissioned a Second Lieutenant in the Royal Scots.

He was knighted in 1918 and was elected a Fellow of the Royal Academy in 1921.

Moderen, written to celebrate the reunification of Southern Jutland with Denmark, was first performed on 30 January 1921 at the Royal Danish Theatre where it was well received.

* Royal Ulster Rifles 1793-1881-renamed Royal Irish Rifles and retained name until 1921 ( renamed as Royal Ulster Rifles until 1947 when it merged with Royal Inniskilling Fusiliers and Royal Irish Fusiliers to form North Irish Brigade

Past Australian censuses were conducted in 1911, 1921, 1933, 1947, 1954, and 1961-2011 every five years.

* 1921 – Forbes Carlile, Australian athlete and coach

* 1999 – Sir Edward Williams, Australian judge ( b. 1921 )

Jardine's first experience against Australia came when his Oxford University team played against the 1921 Australian touring side.

* 1921 – The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years.

* 1921 – Norman Hetherington, Australian cartoonist and puppeteer ( d. 2010 )

According to the Commonwealth Bureau of Census and Statistics ( now the Australian Bureau of Statistics ), " In common with other natives, the islanders are very susceptible to tuberculosis and influenza, and in 1921 an influenza epidemic caused the deaths of 230 islanders.

In 1914, Australian troops occupied German New Guinea, and it remained under Australian military control through World War I until 1921.

* Ron Durham ( born 1921 ), Australian rules footballer

Australian cricketer and cartoonist Arthur Mailey had taken all 10 wickets for 66 runs in a first class match during the 1921 tour of England, and hence titled his 1958 autobiography 10 for 66 And All That.

* Jim Kearney ( Australian footballer ), player for Geelong and Richmond between 1915 and 1921

* William Laird Smith ( 1869 – 1942 ), Australian representative for Denison, 1910 – 1922 and Minister for the Navy, 1920 – 1921

* Joy Hardon ( 1921 –), Australian fencer

Charles Bean ( The Story of Anzac: From the Outbreak of War to the End of the First Phase of the Gallipoli Campaign 4 May 1915, 1921 ) Geoffrey Blainey ( The Tyranny of Distance, 1966 ), Robert Hughes ( The Fatal Shore, 1987 ), Manning Clark ( A History of Australia, 1962 – 87 ), and Marcia Langton ( First Australians, 2008 ) are authors of important Australian histories.

Applying for a commercial pilot's licence on 2 June 1921 ( in which he gave his name as ' Charles Edward Kingsford-Smith '), he became one of Australia's first airline pilots when he was chosen by Norman Brearley to fly for the newly formed West Australian Airways.

Patricia Ethell " Pat " McDonald ( 1 August 1921 – 10 March 1990 ) was an Australian actress and the daughter of one of Australia's most prominent radio engineers Arthur McDonald.

* Retribution ( 1921 film ), an Australian silent film by Armand Lionello

The Australian rugby league team suffered the first loss of their 1921 – 22 Kangaroo tour of Great Britain at Highbury to an English side 4 points to 5 before approximately 12, 000 spectators.

In 1921 Cook resigned from the federal parliament, and was appointed Australian High Commissioner in London.

Cook resigned from Parliament in 1921 and was appointed Australian High Commissioner in London, where he served until 1927.

The thought that the Canadian Air Force should become " Royal " was first generated when the Australian Air Force became " Royal " in August 1921.

In 1921, the Society was renamed the Amalgamated Engineering Union, Australian Section.

In 1921, the 4th Division name was revived and was assigned to an Australian Citizens Military Forces ( reserve ) unit based in Melbourne, which served in Australia during World War II