* 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 – British airship R-38 experiences structural failure over Hull in England and crashes in the Humber estuary.

Similarly, the language spread to numerous other parts of the world as a result of British trade and colonization elsewhere and the spread of the former British Empire, which, by 1921, held sway over a population of 470 – 570 million people, approximately a quarter of the world's population at that time.

* 1921 – Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.

* 2003 – David Greene, British director ( b. 1921 )

In January 1921, the British Labour Commission produced a report on the situation in Ireland which was highly critical of the government's security policy.

* 1921 – Bob Todd, British comedian ( d. 1992 )

* 1921 – The Anglo-Irish Treaty is signed in London by British and Irish representatives.

* 1921 – Liz Smith, British actress

Donald Malcolm Campbell, CBE ( 23 March 1921 – 4 January 1967 ) was a British speed record breaker who broke eight world speed records in the 1950s and 1960s.

* 1921 – David Greene, British director ( d. 2003 )

* 1921 – John Pritchard, British conductor ( d. 1989 )

* 1921 – Araucaria, British crossword compiler

Thus, the third phase of the war ( roughly August 1920 – July 1921 ) involved the IRA taking on a greatly expanded British force, moving away from attacking well defended barracks and instead using ambush tactics.

At the Crossbarry Ambush in March 1921, 100 or so of Barry's men fought a sizeable engagement with a British column of 1, 200, escaping from the British encircling manoeuvre.

In County Mayo, large scale guerrilla action did not break out until spring 1921, when two British forces were ambushed at Carrowkennedy and Tourmakeady.

By the end of the war, in July 1921, the IRA was very hard pressed by the deployment of more British troops into the most active areas and a chronic shortage of arms and ammunition.

During the 1920 Jerusalem riots, the 1921 Palestine riots and the 1929 Palestine riots, Palestinian Arabs manifested hostility against Zionist immigration and Jewish communities, which provoked the reaction of Jewish militias, sometimes supported by British troops.

* 1921 – Dachine Rainer, British writer ( d. 2000 )

* 1921 – Jack Clayton, British film director ( d. 1995 )

Assuming leadership of the Indian National Congress in 1921, Gandhi led nationwide campaigns for easing poverty, expanding women's rights, building religious and ethnic amity, ending untouchability, increasing economic self-reliance, and above all for achieving Swaraj — the independence of India from British domination.

* 1921 – Frank Searle, British Loch Ness Monster hoaxer ( d. 2005 )

Those were his only interludes behind bars, although he collected four more charges on his police record in 1921 and 1922, three for burglary and one for robbery.

( 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.

According to a research report by the Centers for Disease Control and Prevention, Oran was decimated by the plague in 1556 and 1678, but outbreaks after European colonization, in 1921 ( 185 cases ), 1931 ( 76 cases ), and 1944 ( 95 cases ), were very far from the scale of the epidemic described in the novel.

* 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.

( The Green Bay Packers were an independent team until they joined the NFL in 1921 ).

were members of the Football League between 1921 and 1927 before being replaced by Torquay United after finishing bottom.

Most subsequent abeyances ( only a few dozen cases ) were settled after a few years, in favour of the holder of the family properties ; there were two periods in which long-abeyant peerages ( in some cases peerages of doubtful reality ) were brought back: between 1838 and 1841 and between 1909 and 1921.

This incident, coupled with Stalin's demands for the restitution of the Turkish provinces of Kars, Artvin and Ardahan to the Soviet Union ( which were lost by Turkey with the Russo – Turkish War of 1877 – 1878, but were regained with the Treaty of Kars in 1921 ) was one of the main reasons why Turkey decided to give up its general principle of neutrality in foreign affairs.

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.

The vocational and preparatory schools were disbanded and spun off in 1910, and the college assumed its present name in 1921.

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

Population censuses in Bosnia and Herzegovina were conducted in 1879, 1885, 1895, 1910, 1910, 1921, 1931, 1948, 1953, 1961, 1971, 1981 and 1991.

Earlier censuses were taken in 1869, 1880, 1890, 1900, 1910, 1921, 1930, 1950, 1961, 1970, 1980, 1991 and 2001.

In the 20th century, censuses were taken every five years from 1901 to 1921, and then every ten years from 1930.

The censuses covered only the southern part of the country except for the 1952 census which was country wide, and the censuses before 1921 were based on administrative estimates rather than on an actual enumeration.

During the Kingdom of Yugoslavia, censuses were conducted in 1931 and 1921 ; the census in 1941 was never conducted due to the outbreak of WWII.

The first censuses in Uganda were taken in 1911, 1921 and 1931.

Twelve voting delegates were seated at the 1st National Congress in 1921, as well as at the 2nd ( in 1922 ), when they represented 195 party members.

In 1921, the LDS Church removed the " Lectures on Faith " portion of the book, with an explanation that the Lectures " were never presented to nor accepted by the Church as being otherwise than theological lectures or lessons ".

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

Before final negotiations were concluded in 1921, however, Afghanistan had already begun to establish its own foreign policy without repercussions anyway, including diplomatic relations with the new government in the Soviet Union in 1919.