The Age of Innocence is Edith Wharton's twelfth novel, initially serialized in four parts in the Pictorial Review magazine in 1920, and later released by D. Appleton and Company as a book in New York and in London. It won the 1921 Pulitzer Prize for Fiction, making it the first novel written by a woman to win the Pulitzer Prize for Fiction, and thus Wharton the first woman to win the prize. The story is set in upper-class New York City in the 1870s.

Edith Wharton (born Edith Newbold Jones; January 24, 1862–August 11, 1937) was a Pulitzer Prize-winning American novelist, short story writer, and designer. She was nominated for the Nobel Prize in Literature in 1927, 1928 and 1930. Wharton combined her insider's view of America's privileged classes with a brilliant, natural wit to write humorous, incisive novels and short stories of social and psychological insight. She was well acquainted with many of her era's other literary and public figures, including Theodore Roosevelt.