Dashed left edge = started before December 1920 ·
Dashed right edge = ongoing beyond December 1920
Events in December 1920 4
1920Treaty of Alexandropol SignedArmenia cedes territory to end war with Turkish nationalistsThe Democratic Republic of Armenia signed the Treaty of Alexandropol with the Turkish National Movement, ceding large territories and effectively ending Armenian independence. Soviet forces took control of Armenia within days of the signing. The treaty was never ratified but its territorial terms shaped the later Soviet-Turkish border.
1920 – 2012Dave Brubeck (1920-2012)Died 5 December 2012, aged 91American jazz pianist and composer best known for the album "Time Out" and its hit track "Take Five." He died of heart failure one day before his 92nd birthday.
1920Government of Ireland Act Receives Royal AssentLegislation partitions Ireland into two jurisdictionsThe British Parliament's Government of Ireland Act received royal assent, creating separate home rule parliaments for Northern Ireland and Southern Ireland. The act laid the legal groundwork for the partition of Ireland. Northern Ireland's institutions endured, while Southern Ireland's were superseded by the Irish Free State in 1922.
1920French Communist Party Founded at Tours CongressMajority of French socialists vote to join the Communist InternationalAt a congress in Tours, a majority of the French Section of the Workers' International voted to affiliate with the Communist International, founding the French Communist Party. A minority retained the old socialist party under Leon Blum. The split shaped the French left for the rest of the century.