[1] It was also one of the organizations forming the Supreme Workers' Council which was the parliament of Red Finland.
[2] After the Civil War, the radical SAJ members established the Socialist Workers' Party of Finland (SSTP) in May 1920.
[3] After the rise of the extremist right-wing Lapua Movement, the SAJ was banned in 1930 due to the newly passed Communist Law.
In 1960, the dissident SAK members formed another central organization which was also called SAJ.
The new organization and SAK merged in 1969, forming the present-day Central Organisation of Finnish Trade Unions.