On January 16, 1921, the Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa. It was one of the forerunners of the Communist Party of Czechoslovakia. After the defeat of the Hungarian Soviet Republic, many revolutionary refugees arrived in Czechoslovakia and intermingled with the local political movements. The emergence of the Marxist Left originated in a split in the Slovak Social Democratic Party in 1920, among sections dissatisfied with the counterrevolutionary line of the Czechoslovak Social Democratic Workers Party toward the Hungarian Soviet Republic.
Founding congress of the Marxist Left in Slovakia and the Transcarpathian Ukraine
It was one of the forerunners of the Communist Party of Czechoslovakia.