The Age of Innocence is a 1920 novel by American author Edith Wharton. It was her twelfth novel, and was initially serialized in 1920 in four parts, in the magazine Pictorial Review. Later that year, it was released as a book by D. Appleton & Company. It won the 1921 Pulitzer Prize for Fiction, making Wharton the first woman to win the prize.