East German authorities begin closing the Berlin border

Moscow decided to recall Soviet advisers and experts and ended many cooperative projects during the Sino-Soviet split. The rupture reflected disagreements over strategy and leadership within the...

Speaking during a session marked by newly independent African and Asian states, Khrushchev called for the end of colonial rule and argued for a stronger role for those nations in global...

The General Assembly adopted Resolution 1514, affirming self-determination and calling for an end to colonial rule. The USSR supported the resolution, while anticolonial movements and newly...

Gagarin completed one orbit of Earth aboard Vostok 1. The mission became a global symbol of Soviet scientific achievement and national prestige; the launch depended on workers, engineers, and...

Fidel Castro publicly declared the revolution socialist on the eve of the Bay of Pigs invasion. Cuba’s leaders connected the declaration to national independence and social transformation after U.S....

Khrushchev renewed criticism of Stalin and announced a new party program. The congress also authorized removal of Stalin’s body from the Lenin Mausoleum later that month, reshaping official memory...

The USSR tested the largest nuclear device ever detonated. The explosion demonstrated destructive capacity at the height of the arms race, while military competition exposed Arctic environments and...

The Soviet government raised prices for meat and butter while tightening production norms at the Novocherkassk electric locomotive plant. The combined pressures intensified anger among workers and...

Security forces shot demonstrators after a strike spread through the city. At least two dozen people were killed and many wounded; authorities concealed the massacre, prosecuted participants, and...

A U-2 flight photographed Soviet missile installations under construction in Cuba. The deployment followed the Bay of Pigs invasion and Cuban fears of another attack; the crisis involved Cuban...