epa10382712 Visitors gesture in front of a poster reading USSR 100 at the exhibition ?USSR 100? in the New Tretyakov Gallery in Moscow, Russia, 30 December 2022. On this day 100 years ago, the Soviet Union was founded on 30 December 1922. The USSR existed from 30 December 1922 until its dissolution on 26 December 1991. EPA/YURI KOCHETKOV
