The franchise was founded in Decatur, Illinois, in 1919, and moved to Chicago in 1921.

The party was founded in July 1921 in Shanghai.

* 1921 – The International Working Union of Socialist Parties is founded in Vienna.

* 1921 – The Communist Party of China is founded.

The Alumni Association, one of the oldest in the country, was founded in 1921 by the ex-students of National Council of Education.

As a reaction to their exclusion from political representation, the Kikuyu people, the most subject to pressure by the settlers, founded in 1921 Kenya's first African political protest movement, the Young Kikuyu Association, led by Harry Thuku.

The Communist Party of China was founded by Chen Duxiu and Li Dazhao in the French concession of Shanghai in 1921 as a study society and an informal network.

By 1921, small groups of Marxists existed in six Chinese cities: Shanghai, Peking, Changsha, Wuhan, Canton and Tsinan, with a further group having been founded by Chinese students in Paris.

In August 1921, Mao founded the Self-Study University, through which readers could gain access to Marxist and other revolutionary literature, and which was housed in the premises of the Society for the Study of Wang Fuzhi ( Chuan-shan Hsüeh-she ).

He also took part in the mass education movement to fight illiteracy, founded in 1921 by members of the Chinese Young Men's Christian Association with U. S. backing.

* 1921 – Portuguese Communist Party is founded as the Portuguese Section of the Communist International.

In 1921, Sanger founded the American Birth Control League, which later became the Planned Parenthood Federation of America.

After World War I, Sanger shifted away from radical politics, and she founded the American Birth Control League ( ABCL ) in 1921 to enlarge her base of supporters to include the middle class.

* 1921 – The Communist Party of Spain is founded.

In 1921, Sir George Greenwood, Looney, and others founded The Shakespeare Fellowship, an organization originally dedicated to the discussion and promotion of ecumenical anti-Stratfordian views, but which later became devoted to promoting Oxford as the true Shakespeare.

Neill founded Summerhill School, the oldest existing democratic school in Suffolk, England in 1921.

* 1921 – The Legion of Mary, the largest apostolic organization of lay people in the Catholic Church, is founded in Dublin, Ireland.

The gold rushes of the late 19th century led to the founding of numerous small settlements by immigrants, as such as Argentine Ushuaia in was founded in 1884 and Río Grande in 1921, and the Chilean settlements Puerto Toro and Porvenir in 1892 and 1899 respectively.

In 1921, the Table Tennis Association was founded in Britain, and the International Table Tennis Federation followed in 1926.

* A university is founded in Pécs Hungary ( not to be confused with the present University of Pécs, which was founded in 1921 )

Alessi was founded in 1921 to produce crafted products in metal for eating and drinking, by Giovanni Alessi.

Other major sports clubs were founded in the following years like Grupo Desportivo de Lourenço Marques ( 1921 ), Clube Ferroviário de Lourenço Marques ( 1924 ), Sport Club de Vila Pery ( 1928 ), Clube Ferroviário da Beira ( 1943 ), Grupo Desportivo da Companhia Têxtil do Punguè ( 1943 ), and Sport Lourenço Marques e Benfica ( 1955 ).

The Institute was founded in 1921, as the Institute for Theoretical Physics of the University of Copenhagen, by the Danish theoretical physicist Niels Bohr, who had been on the staff of the University of Copenhagen since 1914, and who had been lobbying for its creation since his appointment as professor in 1916.

Nonviolent means of resistance began to take place of armed rebellions and the most prominent organization was the Taiwanese Cultural Association ( 台灣文化協會 ), founded in 1921.

The Anti-Waste League was a political party in the United Kingdom, founded in 1921 by Lord Rothermere.

In opposing high taxation to pay for social reform the Union pre-empted the policies of the Anti-Waste League, a party formed in 1921 from a similar middle class basis which briefly threatened the hegemony of the Conservative Party on the political right.

* 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.

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

The club entered the Football League in 1921 with the formation of the old Third Division ( North ); after haunting the lower reaches of English football for forty years, they eventually resigned from the League in 1962, due to financial problems, and folded in 1965.

Charlton turned professional in 1920 and first entered the Football League in 1921.

Charlton's first Football League match was against Exeter City in August 1921, which they won 1 – 0.

Renamed the Women's International League for Peace and Freedom in 1921, it remains the oldest extant women's peace organization.

For strategic reasons, however, the League of Nations awarded the Åland Islands to Finland in 1921.

The League of Nations gave Norway jurisdiction over the island, and in 1921 Norway opened the first meteorological station.

* 1921 – Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.

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.

In June 1921, the League announced its decision: the islands were to remain a part of Finland, but with guaranteed protection of the islanders, including demilitarization.

On 12 August 1921, the League was asked to settle the matter ; the Council created a commission with representatives from Belgium, Brazil, China and Spain to study the situation.

The frontiers of Albania had not been set during the Paris Peace Conference in 1919, as they were left for the League to decide ; however, they had not yet been determined by September 1921, creating an unstable situation.

In November 1921, the League decided that the frontiers of Albania should be the same as they had been in 1913, with three minor changes that favoured Yugoslavia.

In March 1921, the League abandoned plans for the plebiscite.

1921: Lady Chelmsford League was formed in India for developing Maternity & Child welfare services

* 1921 – Bill Mosienko, National Hockey League player ( d. 1994 )

The League of Nations organized a plebiscite to decide the issue in 1921.

This was known as the Knox – Porter Resolution ; subsequent Peace treaties were signed with both countries and Ratified by the Senate and signed by Harding on July 21, 1921 ; that officially ended World War I for the U. S. The Senate had refused to ratify the Treaty of Versailles in both 1919 and 1920 because it required the U. S. to endorse the League of Nations.

* July 19 – Elmer Valo, Slovak Major League Baseball player ( b. 1921 )

Sport: In the first half of the twentieth century, before Major League Baseball was racially integrated, dark-skinned and dark-complexion players were nicknamed Nig ; examples are: Johnny Beazley ( 1941 – 49 ), Joe Berry ( 1921 – 22 ), Bobby Bragan ( 1940 – 48 ), Nig Clarke ( 1905 – 20 ), Nig Cuppy ( 1892 – 1901 ), Nig Fuller ( 1902 ), Johnny Grabowski ( 1923 – 31 ), Nig Lipscomb ( 1937 ), Charlie Niebergall ( 1921 – 24 ), Nig Perrine ( 1907 ), and Frank Smith ( 1904 – 15 ).