What Christian religion did C.S. Lewis return to in 1931?

C.S. Lewis returned to Christianity in 1931.

Lewis had been raised in the Church of Ireland but became an atheist during his adolescence. Over several years, conversations with friends and writers—including J.R.R. Tolkien and Hugo Dyson—contributed to his renewed belief in Christianity. He described his conversion as a movement from atheism to belief in God and then to Christianity.

Lewis became one of the most influential Christian apologists of the twentieth century. His radio broadcasts during the Second World War were later revised into the book Mere Christianity, which presents shared Christian ideas rather than the distinctive doctrines of one denomination.

He was an Anglican layman, not an ordained priest. His religious writing includes The Problem of Pain, Miracles, The Four Loves, and The Screwtape Letters. Lewis’s fiction also contains Christian themes, but he said that the Narnia books were not simply direct allegories in which every character matched one religious concept.