C.S. Lewis became a Christian in 1931 after previously describing himself as an atheist.
Lewis’s conversion developed over several years rather than occurring in a single moment. He returned to belief in God in 1929 and then became a Christian in 1931. Conversations with Hugo Dyson and J.R.R. Tolkien were important in his movement toward Christianity, especially his reflections on myth, history, and the identity of Jesus.
Lewis had been raised in the Church of Ireland but rejected Christianity during adolescence. His later conversion transformed the direction of his writing. He became one of the twentieth century’s best-known Christian apologists, producing works such as Mere Christianity, The Problem of Pain, and The Screwtape Letters. His 1931 conversion is distinct from his earlier return to theism in 1929.