<P> Louis Lassen of Louis' Lunch, a small lunch wagon in New Haven, Connecticut, is said to have sold the first hamburger and steak sandwich in the U.S. in 1900 . New York magazine states that "The dish actually had no name until some rowdy sailors from Hamburg named the meat on a bun after themselves years later", noting also that this claim is subject to dispute . A customer ordered a quick hot meal and Louis was out of steaks . Taking ground beef trimmings, Louis made a patty and grilled it, putting it between two slices of toast . Some critics like Josh Ozersky, a food editor for New York Magazine, claim that this sandwich was not a hamburger because the bread was toasted . </P> <P> One of the earliest claims comes from Charlie Nagreen, who in 1885 sold a meatball between two slices of bread at the Seymour Fair now sometimes called the Outagamie County Fair . The Seymour Community Historical Society of Seymour, Wisconsin, credits Nagreen, now known as "Hamburger Charlie", with the invention . Nagreen was fifteen when he was reportedly selling pork sandwiches at the 1885 Seymour Fair, made so customers could eat while walking . The Historical Society explains that Nagreen named the hamburger after the Hamburg steak with which local German immigrants were familiar . </P> <P> According to White Castle, Otto Kuase was the inventor of the hamburger . In 1891 he created a beef patty cooked in butter and topped with a fried egg . German sailors would later omit the fried egg . </P> <P> The family of Oscar Weber Bilby claim the first - known hamburger on a bun was served on July 4, 1891 on Grandpa Oscar's farm . The bun was a yeast bun . In 1995, Governor Frank Keating proclaimed that the first true hamburger on a bun was created and consumed in Tulsa, Oklahoma in 1891, calling Tulsa, "The Real Birthplace of the Hamburger ." </P>

Where did the fried egg on a burger come from
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