Who was Lenin?

Vladimir Lenin, also called Vladimir Ilich Lenin, original name Vladimir Ilich Ulyanov, (born April 10 [April 22, New Style], 1870, Simbirsk, Russia—died January 21, 1924, Gorki [later Gorki Leninskiye], near Moscow), founder of the Russian Communist Party (Bolsheviks), inspirer and leader of the Bolshevik Revolution (1917), and the architect, builder, and first head (1917–24) of the Soviet state. He was the founder of the organization known as Comintern (Communist International) and the posthumous source of “Leninism,” the doctrine codified and conjoined with Karl Marx’s works by Lenin’s successors to form Marxism-Leninism, which became the Communist worldview.

Source: https://www.britannica.com/biography/Vladimir-Lenin