Each category of fast-food chain restaurant has its "best in show." There can be only one best selling sub sandwich, one best burger, one best taco. In the middle of the hamburger craze in 1964, Arby's found its niche in the land of roast beef. The Raffel brothers opened the first Arby's Roast Beef Restaurants in Boardman, Ohio. Beef was a big hit with the burger chains, so the Raffels decide that instead of grinding it up, they'd slow roast it and slice it thin. The name Arby's comes from spelling out the initials R.B. -- for Raffel brothers, not "roast beef."
Arby's operates more than 3,500 restaurants in the United States and Canada, and the chain's most popular sandwich is still the signature roast beef sandwich. The beef is sliced fresh for each sandwich and customers can top it themselves with the famous Arby's and Horsey sauces. In 2008, Arby's purchased Wendy's for $2.34 billion, forming the third largest fast-food company in the world.