C. S. Lewis was a British writer and scholar, best known for his works of fiction and Christian apologetics. Born on November 29, 1898, in Belfast, Ireland, he became a prominent figure in literature and theology. His most famous works include the Chronicles of Narnia series, which blends fantasy with moral lessons, and Mere Christianity, a book that explores the Christian faith. Lewis was also a professor at Oxford University and later at Cambridge University. He was a close friend of author J.R.R. Tolkien, and they were both part of a literary group called the Inklings. Lewis passed away on November 22, 1963, leaving a lasting impact on literature and religious thought.