F. Scott Fitzgerald’s “The Great Gatsby” provides a vivid depiction of post-World War I America, drawing from Fitzgerald’s own experiences during the Great War. Fitzgerald met his future wife, Zelda, during his military training, and their tumultuous relationship inspired the character of Daisy in the novel. The characters in the book, such as Jay Gatsby, are influenced by the historical context of WWI, with rumors suggesting Gatsby was a German spy. The novel reflects societal changes post-WWI, including women entering the workforce and gaining the right to vote. Fitzgerald weaves historical accuracy and personal experiences into his timeless story.
https://www.theworldwar.org/learn/about-wwi/borne-back-ceaselessly-past-fitzgerald-gatsby-and-wwi