Hamburger Oklahoma in 1891, calling Tulsa, "The Real Birthplace of the Hamburger." Frank and Charles Menches claim to have sold a ground beef sandwich at the Erie County Fair in 1885 in Hamburg, New York. During the fair, they ran out of pork sausage for their sandwiches and substituted beef. Kunzog, who spoke to Frank Menches, says they exhausted their supply of sausage, so purchased chopped up beef from a butcher, Andrew Klein. Historian Joseph Streamer wrote that the meat was from Stein's market not Klein's, despite Stein's having sold the market in 1874. The story notes that the name of
Hamburger or "fortified refuge" and is a widespread component of place names. The first element of the name is perhaps from Old High German "hamma", referring to a bend in a river, or Middle High German "hamme", referring to an enclosed area of pastureland. "Hamburger" in German is the demonym of Hamburg, similar to "frankfurter" and "wiener", names for other meat-based foods and demonyms of the cities of Frankfurt and Vienna (Wien), respectively. The term "burger", a back-formation, is associated with many different types of sandwiches, similar to a (ground meat) hamburger, but made of different meats such as buffalo in