Though using spun sugar has been around for centuries, William Morrison, a dentist from Tennessee, is credited with inventing the first cotton candy machine in 1897. He partnered with his friend John C. Wharton, who worked as a confectioner, to create a machine that made this delicious "Fairy Floss." Their cotton candy was first introduced in 1904 at the St. Louis World's Fair, which lasted seven months! Sure enough, it was a hit. The men sold a whopping 65,655 boxes, priced at just 25 cents a box.