1921 CE

The Tulsa race massacre destroys the Greenwood District of Tulsa, Oklahoma, killing hundreds and razing thousands of homes and businesses; the Russian famine of 1921–1922 kills an estimated five million in the Russian Soviet Federative Socialist Republic, prompting limited international aid; the Red Army invasion of Georgia brings the Democratic Republic of Georgia under Soviet control; the Anglo-Irish Treaty ends the Irish War of Independence, creating the Irish Free State as a self-governing dominion; the Rif War begins as Berber tribes led by Abd el-Krim resist Spanish colonial rule in northern Morocco; and the Kronstadt rebellion sees Soviet sailors and workers rise against Bolshevik rule before being crushed by the Red Army.

In the 1920s, the 20th century.