Which popular fast food chain restaurant was first opened in 1955?

Mc donalds was opened then as part of the whole automobile culture that emerged in the 50s

At roughly the same time as Kroc was conceiving what eventually became McDonald's Corporation, two Miami, Florida businessmen, James McLamore and David Edgerton, opened a franchise of the predecessor to what is now the international fast food restaurant chain. Burger King is the answer.