In 1946, 66 candy manufacturing companies were listed in the phone book. The candy industry in the area began in 1765, on the banks of the Neponset River in Dorchester, when an Irish immigrant named John Hannon established a chocolate mill. The large and populated city made an ideal setting for a new industry to start up, and soon candy companies began springing up in Boston as roadside operations. With the introduction of the steam engine, and a lozenge-cutting machine in 1847, many of those same businesses expanded their reach into Cambridge. Land was cheaper in Cambridge, and the city became a major industrial center. At its height, Cambridge was the second largest industrial production city in Massachusetts and candy was one of its main businesses. While most of the candy factories are gone, one remains and many of the buildings are still standing. Check out the historic and contemporary on this walking tour of "Candy Land"!