A chicken sandwich is a boneless, skinless, breast of chicken on a hamburger bun topped with condiments and trimmings.
The Burger Bundles/Burger Buddies products of the 1980s, [were] originally inspired by the similar products sold at White Castle and Krystal.
While BK began its foray into locations outside of the continental United States in 1963 with a store in San Juan, Puerto Rico, it did not have an international presence until several years later. Shortly after the acquisition of the chain by Pillsbury, it opened its first Canadian restaurant in Windsor, Ontario in 1969.