The 19th century is often considered the golden age of children’s literature. The availability of children’s books increased as the cost of production became more affordable for publishers. Folktales often served as inspiration for many of the books written during this era. These tales were passed down from generation to generation through oral tradition. By the turn of the century, authors were modernizing traditional folktales while exposing young readers to previously unknown cultures and societies. As the 20th century progressed, authors of children’s book were inspired by the cultural and societal changes affecting American society, especially in the post-World War II era. Many stories incorporated the important political and social events impacting everyday American Life. Today, authors and illustrators of children’s literature continue to document the ever evolving, multicultural world.