 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.Due to improvements in machines, chocolate underwent a transformation from a primarily a drink to food, and different types of chocolate began to emerge.At the same time, the price of chocolate began to drop dramatically in the 1890s and 1900s as the production of chocolate began to shift away from the New World to Asia and Africa.