"The History of Sandford and Merton" by Thomas Day is a children's book published between 1783-1789. It tells the story of Tommy Merton, a spoiled six-year-old aristocrat from the West Indies, who must learn virtue from Harry Sandford, a plain farmer's son. Under the guidance of Mr. Barlow, Tommy's transformation unfolds through moral tales, scientific lessons, and fables. Embodying Rousseau's philosophy, the book champions simple living and hard work over luxury and decadence, becoming a wildly successful guide for children's moral education. (This is an automatically generated summary.)