Cotton candy was invented in 1897 by William Morrison and John C. Wharton, candymakers from Nashville, Tennessee, USA. They invented a device that heated sugar in a spinning bowl that had tiny holes in it. It formed a treat that they originally called "Fairy Floss." http://www.enchantedlearning.com/inventors/page/c/cottoncandy.shtml
Cotton Candy (US English), candy floss (British English), or fairy floss (Australian English) is a form of spun sugar that is produced in a special machine and sold at fairs and other jovial events. https://en.wikipedia.org/wiki/Cotton_candy