All Events
The American novelist Sinclair Lewis has his first major success with Main Street, an unflattering portrayal of American village life
League of Nations mandates give Britain responsibility for Iraq, Transjordan and Palestine
League of Nations mandates give France responsibility for Syria and Lebanon
A punitive peace treaty, negotiated at Sèvres, is designed to dismember the Ottoman empire
The sultan of Turkey signs the Treaty of Sèvres with the Allies but it is rejected by the new nationalist government
The body of an Unknown Warrior, selected at random from British war graves, is buried at the entrance to Westminster Abbey
The body of an unknown French soldier is laid to rest in a chapel within the Arc de Triomphe in Paris, and a few weeks later is buried at ground level beneath the arch
James Craig succeeds Edward Carson as leader of the Ulster Unionist party in northern Ireland
The Lord Lieutenant of Ireland appoints James Craig the first prime minister of the new Northern Ireland Parliament
The Parliament of Northern Ireland convenes for the first time
The schooner Bluenose begins a long series of international racing victories for Canada
An army officer, Reza Khan, becomes war minister after seizing control of Tehran with his Cossack brigade
The first traces are found of a major but entirely forgotten civilization in the Indus valley
With massive force, and huge casualties, Lenin puts an end to a naval mutiny at Kronstadt

Marie Stopes and her husband set up in London a Mothers' Clinic for Birth Control, the first of its kind in Britain
Abdullah ibn Hussein, of the Hashemite family, becomes emir of the new province of Transjordan
In a major economic U-turn, Lenin's New Economic Policy allows peasants to hold markets and sell the surplus of their product
The commission considering the level of Germany's war reparations to the Allies decides on $33 billion
Some 50,000 peasants are herded into Russia's first concentration camps
Within a five-week period the Italian playwright Luigi Pirandello writes two masterpieces, Six Characters in Search of an Author immediately followed by Henry IV
The republican party Sinn Fein is unopposed in southern Ireland's first general election, and so wins every available seat in the Dail
Mussolini and 35 of his Fascist colleagues win seats in the Italian parliament
The Sinn Fein members of southern Ireland's new parliament assemble on their own, under the name Dáil Eireann (Assembly of Ireland)
The Young Kikuyu Association is formed in Kenya, to fight for African rights and the restoration of Kikuyu land
Alfred Adler, in Vienna, opens the first of many child-guidance clinics