October Revolution in Russia leads to the establishment of the Russian Soviet Federative Socialist Republic.
RSFSR signing the Treaty of Brest-Litovsk
he RSFSR signs the Treaty of Brest-Litovsk, ending Russia's involvement in World War I
Lenin dies, and Joseph Stalin rises to power as the General Secretary of the Communist Party of the Soviet Union.
Stalin launches the First Five-Year Plan
talin launches the First Five-Year Plan, aimed at rapidly industrializing the country and collectivizing agriculture. This plan leads to significant economic and social changes, but also causes widespread famine and hardship.
The USSR signing the Molotov-Ribbentrop Pact
The USSR signs the Molotov-Ribbentrop Pact with Nazi Germany, which includes secret protocols dividing Eastern Europe into spheres of influence.
USSR participates in World War II
The USSR participates in World War II after being invaded by Nazi Germany. The Soviet Union suffers heavy casualties but ultimately emerges victorious, playing a crucial role in the defeat of the Axis powers.
stalin dies, and Nikita Khrushchev becomes the leader of the USSR. He launches a period of de-Stalinization, denouncing Stalin's policies and initiating reforms.
The USSR launches the world's first artificial satellite
The USSR launches the world's first artificial satellite, Sputnik 1, marking the beginning of the Space Age.
USSR officially dissolves
The USSR officially dissolves, and the Russian Federation emerges as its successor state. Boris Yeltsin becomes the President of Russia, marking the end of the first two decades of the USSR.