Religion in York is a large Quaker mental hospital, situated in the east of the city outside the city walls. It was founded in 1796 by William Tuke; over the next century his son Henry Tuke, grandson Samuel Tuke and great-grandson Daniel Hack Tuke also devoted themselves to mental health reform, continuing to reform The Retreat and publishing a number of works on the subject. The York-born Quaker chocolate entrepreneurs and social reformers Joseph Rowntree and Benjamin Seebohm Rowntree left an indelible mark on the city, through both their business interests and their philanthropy. They built the village of New Earswick to provide
Chocolate began producing chocolate in 1862, after buying out the Tuke family business. Cadbury was manufacturing boxed chocolates in England by 1868. In 1893, Milton S. Hershey purchased chocolate processing equipment at the World's Columbian Exposition in Chicago, and soon began the career of Hershey's chocolates with chocolate-coated caramels. Several types of chocolate can be distinguished. Pure, unsweetened chocolate, often called "baking chocolate", contains primarily cocoa solids and cocoa butter in varying proportions. Much of the chocolate consumed today is in the form of sweet chocolate, which combines chocolate with sugar. Milk chocolate is sweet chocolate that also contains milk powder