Between 1939 and 1940 seven books of poetry were published under the name ''Stone and Sky'' in the city of Bogotá that significantly impacted the country; they were edited by the poet Jorge Rojas. In the following decade, Gonzalo Arango founded the movement of "nothingness" in response to the violence of the time; he was influenced by nihilism, existentialism, and the thought of another great Colombian writer: Fernando González Ochoa. During the boom in Latin American literature, successful writers emerged, led by Nobel laureate Gabriel García Márquez and his magnum opus, ''One Hundred Years of Solitude'', Eduardo Caballero Calderón, Manuel Mejía Vallejo, and Álvaro Mutis, a writer who was awarded the Cervantes Prize and the Prince of Asturias Award for Letters. Other leading contemporary authors are Fernando Vallejo, William Ospina (Rómulo Gallegos Prize) and Germán Castro Caycedo.