A.A. Milne, (born January 18, 1882, London, England—died January 31, 1956, Hartfield, Sussex), English humorist, the originator of the immensely popular stories of Christopher Robin and his toy bear, Winnie-the-Pooh. After attending the University of Cambridge's Trinity College and writing for the literary magazines Granta and Punch, A.A. Milne began a successful career as a novelist, poet and playwright in the 1920s. His best-known works are his two collections of children's poetry, When We Were Young and Now We Are Six, and his two books of stories about the lovable bear Winnie-the-Pooh and his animal friends.