Answer
The Age of Innocence, a novel by Edith Wharton, won her the Pulitzer Prize in Fiction in 1921. The novel explores the complexities of New York City's high society in the 1870s, focusing on Themes of social conformity, forbidden love, and the consequences of societal expectations. Wharton's nuanced portrayal of the characters and their struggles resonated with readers, solidifying her reputation as a master of American literature.