|Clive Staples Lewis was educated in England, attending Oxford in 1917. World War I interrupted his studies and Lewis served in the trenches for two years. In 1919 he returned to Oxford, where he remained until 1954. An atheist, Lewis converted to Christianity in 1929, and spent his life pursuing many interests: his acclaimed Narnia books and a trilogy of space travel novels; books concerning religion; and an academic career in medieval and renaissance literature. In 1955, Lewis moved on to Magdalen College, Cambridge University; in 1956 he married Joy Davidman Gresham, who died in 1960. Lewis survived her by three years.