The Russian Revolution was a major change event in early 20th Century Europe, with large consequences for local and global international relations and politics in the decades after. With the Bolsheviks and the rise of Lenin, the world was introduced to the ideology of communism as we understand it today, as distinct from socialism, and having evolved from the original Marxist interpretation, in practice on a large scale for the first time.
The Russian Revolution continued on until mid-1923, through the Russian Civil War and execution of the imperial family in 1918. By 1923 the other socialist revolutions in Europe had all but died out, leaving the Russian Soviet Republic, soon after the Soviet Union, as the lone surviving example of a Marxist state, though the 1919 creation of the Comintern, the Russian controlled international group for communism, continued to be influential across the globe, particularly in neighbouring European countries.