2./kloc-After 0/3rd century, Moscow gradually became the center of primitive Russian culture in Kiev. /kloc-In the Ivan IV era in the middle of the 6th century, the Grand Duchy of Moscow was renamed Tsarist Russia. By the time of Peter I in18th century, it had become a huge Russian empire, spanning a vast area from Poland to the Pacific Ocean. 186 1 year, Russia abolished serfdom. Subsequently, the number of farmers increased and the demand for land increased, which greatly increased the pressure of the revolution. From the abolition of serfdom to the outbreak of World War I in 19 14, Stolypin Reform, 1906 Constitution and State Duma were introduced, which greatly changed the economic and political situation, but the czar was still unwilling to give up dictatorship. Military failure and food shortage triggered the Russian Revolution in 19 17, after which the capitalist Bolsheviks stepped onto the power stage and established the Union of Soviet Socialist Countries.
3. From 1922 to 199 1, the Soviet Union gradually grew into a superpower. However, with the increasingly acute contradictions caused by the defects of economic and political systems, the Soviet Union disintegrated in 199 1. 199 1 year later, the Russian Federation was founded and inherited the status of the Soviet Union in international affairs. However, Russia is no longer a superpower. Until today, Russia's political and economic structure still has the characteristics of Russia and the Soviet Union.