Leader in a 1917 revolution

The answer to the crossword question “Leader in a 1917 revolution” is LENIN. Vladimir Lenin was a Russian communist revolutionary who led the Bolshevik Party to victory in the October Revolution of 1917. He became the first head of the Soviet Union and played a key role in the development of Marxist theory. Lenin’s leadership and ideology had a significant impact on the course of world history, particularly in the 20th century.