Félix Rubén García Sarmiento, known as Rubén Darío, was a Nicaraguan poet who initiated the Spanish-language literary movement known as modernismo (modernism) that flourished at the end of the 19th century. Darío had a great and lasting influence on 20th-century Spanish-language literature and journalism. He has been praised as the "Prince of Castilian Letters" and undisputed father of the modernismo literary movement.