WORLD HISTORY

Detailed explanation-1: -On 29 December 1922 a conference of plenipotentiary delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR approved the Treaty on the Creation of the USSR and the Declaration of the Creation of the USSR, forming the Union of Soviet Socialist Republics.

Detailed explanation-2: -The Russian Soviet Federative Socialist Republic renamed itself as the Russian Federation and became the primary successor state to the Soviet Union.

Detailed explanation-3: -The U.S.S.R. was the successor to the Russian Empire of the tsars. Following the 1917 Revolution, four socialist republics were established on the territory of the former empire: the Russian and Transcaucasian Soviet Federated Socialist Republics and the Ukrainian and Belorussian Soviet Socialist Republics.

Detailed explanation-4: -Following the October Revolution, Vladimir Lenin became the head of the new government of the Russian Soviet Federative Socialist Republic.

Detailed explanation-5: -Aided by German intelligence agents, exiled Bolshevik leader Vladimir Lenin, along with 23 other Russian banished revolutionaries, secretly returned to Russia in a sealed train.