Decree of the first congress of councils USSR.

The I All-Union Congress of Soviets is a congress of representatives of Soviets of workers, peasants and Red Army deputies, held on December 30, 1922 in Moscow.
The congress approved the Declaration and the Treaty on the Formation of a New State — the Union of Soviet Socialist Republics (USSR). Four states united in the USSR: the Russian SFSR, the Ukrainian SSR, the Belorussian SSR, the Transcaucasian SFSR (SFSR - a socialist federal Soviet republic). In addition, congress elected the Central Executive Committee of the USSR.

As of April 2021, KVK and WorldCat show no copies in libraries outside Russia.