Births on June 21

Hans Gerschwiler, Swiss figure skater (d. 2017)

Hans Gerschwiler (21 June 1920 – 27 September 2017) was a Swiss figure skater. He was the 1948 Olympic silver medalist

19 Jan

League of Nations
The United States Senate votes against joining the League of Nations.
8 Mar

Arab
The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
19 Mar

Treaty of Versailles
The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
28 Apr

Soviet Union
Azerbaijan is added to the Soviet Union.
25 Oct

Sinn Féin
After 74 days on hunger strike in Brixton Prison, England, the Sinn Féin Lord Mayor of Cork, Terence MacSwiney dies.