From top to bottom, left to right: The
Tulsa race massacre devastates the prosperous Greenwood District of
Tulsa, Oklahoma, as a white mob attacks the thriving African American community, killing hundreds and destroying thousands of homes and businesses, becoming one of the worst episodes of racial violence in U.S. history;
Russian famine of 1921–1922 strikes the
Russian Soviet Federative Socialist Republic, resulting in the deaths of an estimated five million people and prompting limited international aid amid the turmoil of the early Soviet period; the
Red Army invasion of Georgia sees Soviet forces overthrow the short-lived
Democratic Republic of Georgia, integrating the country into the Soviet Union and marking a key moment in the consolidation of Bolshevik control in the Caucasus; the
Anglo-Irish Treaty ends the
Irish War of Independence, establishing the
Irish Free State as a self-governing dominion within the
British Empire; the
Rif War begins in northern
Morocco, as Berber tribes led by
Abd el-Krim rebel against Spain’s colonial rule, launching a protracted and brutal anti-colonial conflict; and the
Kronstadt rebellion erupts as disgruntled Soviet sailors and workers rise up against Bolshevik rule, demanding greater political freedoms and reforms before being violently suppressed by the Red Army.