For a simple children's story about a pacifist bull in Spain who would rather smell the flowers than charge a matador, Munro Leaf's The Story of Ferdinand generated tremendous controversy, owing to its worldwide popularity and its date of publication, 1936, which found it caught in political crosswinds. It was banned in Franco's Spain. Hitler ordered it burned as "degenerate democratic propaganda" in Nazi Germany, though it was republished and distributed for free in the same country once the war was over, to teach children a message of peace. Gandhi was a fan. So was H.G. Wells.