Members of the Bulgarian Communist Party gather during a rally marking the 92th anniversary of Vladimir Lenin's overthrow of the Tsarist empire near a statue of their leader, in Sofia on November 7, 2009. The October Revolution of October 25, 1917 (November 7, 1917 according to the new calendar) ousted the post-imperial provisional government and installed the Soviets led by Vladimir Ilyich Lenin in power. Getty Images logo Getty Images 27 months ago

Members of the Bulgarian Communist Party gather during a rally marking the 92th anniversary of Vladimir Lenin's overthrow of the Tsarist empire near a statue of their leader, in Sofia on November 7, 2009. The October Revolution of October 25, 1917 (November 7, 1917 according to the new calendar) ousted the post-imperial provisional government and installed the Soviets led by Vladimir Ilyich Lenin in power.