Count Lev Nikolayevich Tolstoy (9 September 1828 – 20 November 1910), also known as Leo Tolstoy, was a Russian writer and philosopher who primarily wrote novels and short stories. Tolstoy was a master of realistic fiction and is widely considered one of the world's greatest novelists. He is best known for two long novels, War and Peace (1869) and Anna Karenina (1877). Tolstoy first achieved literary acclaim in his 20s with his semi-autobiographical trilogy of novels, Childhood, Boyhood, and Youth (1852-1856) and Sevastopol Sketches (1855), based on his experiences in the Crimean War. His fiction output also includes two additional novels, dozens of short stories, and several famous novellas, including The Death of Ivan Ilych, Family Happiness, and Hadji Murad. Later in life, he also wrote plays and essays. Tolstoy is equally known for his complicated and paradoxical persona and for his extreme moralistic and ascetic views, which he adopted after a moral crisis and spiritual awakening in the 1870s, after which he also became noted as a moral thinker and social reformer.
His literal interpretation of the ethical teachings of Jesus, centering on the Sermon on the Mount, caused him in later life to become a fervent Christian anarchist and anarcho-pacifist. His ideas on nonviolent resistance, expressed in such works as The Kingdom of God Is Within You, were to have a profound impact on such pivotal twentieth-century figures as Mohandas Gandhi, Martin Luther King, Jr., and James Bevel.