The minutes of the Second Congress of the RSDLP are one of the main sources for studying the history of the formation of the Communist Party of the Soviet Union. Giving an accurate and vivid picture of the birth of the revolutionary Marxist party of the working class, a new type of party that has become the vanguard of the world revolutionary movement, the minutes of the Second Congress of the RSDLP occupy an important place among documentary materials on the history of the international communist and labor movement.