 Dogs and cheesesteaks, I mean, there's not a lot of things that are more American than that. In Olney, Mike Murillo, WTOP News. Well, from cheesesteaks to this not always being a staple of your July 4th celebration, a third of all restaurants in the U.S. actually serve Caesar salad. Guess what? It's been 100 years since it was first created. It was a hot and steamy night in Tijuana, Mexico on July 4th, 1924.