Obshestvovédeny or Obshchestvovédeniye (Russian: Обществоведение) is a social science and eponymous academic subject in a Soviet school. As a subject, it was taught from the 1960s to 1991 throughout the USSR and covered all the three constituent parts of Marxism–Leninism. These component parts of Marxism, according to Lenin and his Soviet adherents, are Marxist-Leninist philosophy (dialectical and historical materialism), political economy, and scientific communism.