context: The predecessor of the NTS was the Union of Russian National Youth (SRNM). By 1929, the SRNM merged with several similar youth organizations and was renamed the National Union of Russian Youth Abroad. On June 1, 1930, the First Congress of Representatives of Groups and Unions of Russian National Youth in Belgrade proclaimed the creation of a single Union, which included youth groups in Yugoslavia, France, Bulgaria, the Netherlands, as well as nine representatives of Yugoslav branches Russian Union of National Youth. At the same congress, the leadership of the NSRM was elected, the ideological provisions of the new organization were formulated, its provisional charter was adopted.
question: In what year was the people's labor union of Russian solidarians organized?
answers.text: 1930