Here's why:
* The Pulitzer Prize wasn't awarded for fiction in 1925. It began awarding a fiction prize in 1922 but then took a break until 1930.
* The National Book Award wasn't established until 1950.
* The awards landscape in the 1920s was different. While there were literary awards, they were not as prominent or influential as they are today.
It's worth noting that the novel has been recognized and honored in various ways over the years, including:
* Being included in the Modern Library's 100 Best Novels
* Being adapted into numerous films and television shows
* Being consistently praised by critics and readers alike
Despite not winning any major awards at the time of its publication, The Great Gatsby has secured its place as a timeless classic and a cornerstone of American literature.