When Jacob and Wilhelm Grimm published their Children's and Household Tales in 1812, followed by a second volume in 1815, they had no idea that such stories as "Rapunzel," "Hansel and Gretel," and "Cinderella" would become the most celebrated in the world. Yet few people today are familiar with the majority of tales from the two early volumes, since in the next four decades the Grimms would publish six other editions, each extensively revised in content and style. From "The Frog King" to "The Golden Key," wondrous worlds unfold—heroes and heroines are rewarded, weaker animals triumph over the strong, and simple bumpkins prove themselves not so simple after all.