The term 'Bolshevism Founder' refers to Vladimir Lenin, a Russian revolutionary, politician, and political theorist. He was the leader of the Bolshevik Party and the first head of the Soviet Union. Lenin was born in 1870 and died in 1924. He is known for his role in the October Revolution of 1917, which led to the establishment of the Soviet Union. He is also credited with developing the ideology of Bolshevism, which was based on Marxism and Leninism.