Madrid has been one of the great centres of Spanish literature. Some of the most distinguished writers of the Spanish Golden Century were born in Madrid, including Lope de Vega (author of ''Fuenteovejuna'' and ''The Dog in the Manger''), who reformed the Spanish theatre, a project continued by Calderon de la Barca (author of ''Life is a Dream''). Francisco de Quevedo, who criticised the Spanish society of his day, and author of ''El Buscón'', and Tirso de Molina, who created the character Don Juan, were born in Madrid. Cervantes and Góngora also lived in the city, although they were not born there. The Madrid homes of Lope de Vega, Quevedo, Gongora, and Cervantes still exist, and they are all in the Barrio de las Letras (Literary Neighborhood).