Individual #USSR__Soviet_Union__Russia__Union_of_Soviet_Socialist_Republics  a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia an others); officially dissolved 31 December 1991
  instance of:  #country
  part:  #February_Revolution  #Russian_Revolution  #Soviet_Socialist_Republic  #Soviet_Russia  #Caspian_Sea
  part of:  #Eurasia  the land mass formed by the continents of Europe and Asia
     part of:  #eastern_hemisphere__easternhemisphere__orient  the hemisphere that includes Eurasia and Africa and Australia
     part of:  #northern_hemisphere  the hemisphere north of the equator

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