It was formally declared on 19 January 1918 when the democratically elected Russian Constituent Assembly drafted and adopted the "Resolution on the form of government of Russia", declaring Russia to be a democratic federal republic.
Foi formalmente declarada o 19 de xaneiro de 1918 cando a elixida democraticamente Asemblea Constituínte Rusa elaborou e aprobou a "Resolución sobre a forma de goberno de Rusia", declarando a Rusia como unha república federal democrática.