The Spanish-American War of 1898 seems to mark a turning point in both geopolitical and literary histories. The victorious American empire ascended and began its cultural domination of the globe in the twentieth century, while the once-mighty Spanish empire declined and became a minor state in the world republic of letters. But what if this narrative relies on several faulty assumptions, and what if key modernist figures in both America and Spain radically rewrote these histories at a foundational moment of modern literary studies?

Following networks of American and Spanish writers,...