Decrees (Russian: декреты) were legislative acts of the highest Soviet institutions, primarily of the Council of People's Commissars (the highest executive body) and of VTsIK (the highest legislative body between sessions of the Congress of Soviets),[1] issued between 1917 and 1924. Such acts issued after 1924 are referred to as Decisions (Russian: постановление) or Ukases in Soviet sources. They are also known as the 'April Theses'.