From his experience, William Rosenberg found that donuts and coffee were the 2 most popular items selling at factories and construction sites. To capitalize on this business’s potential, he opened “Open Kettle” in 1948, a restaurant that sold donuts and coffee in Quincy, Massachusetts.

However, after a discussion with company executives in 1950, the name was changed to Dunkin’ Donuts. The restaurant proved successful and Rosenberg began to sell the franchises in 1955. By 1963, they had opened 100 stores.