Greenwich, London, UK

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The hamburger, a ground beef patty between two slices of bread, was first created in America in 1900 by Louis Lassen, owner of Louis' Lunch in New Haven, Connecticut.[4] There have been rival claims by Charlie Nagreen, Frank and Charles Menches, Oscar Weber Bilby, and Fletcher David.[5][6] White Castle traces the origin of the hamburger to Hamburg, Germany with its invention by Otto Kuase.[7] However, it gained national recognition at the 1904 St. Louis World's Fair when the New York Tribune namelessly attributed the hamburger as, "the innovation of a food vendor on the pike."[6] No conclusive claim has ever been made to end the dispute over the inventor of the hamburger with a variety of claims and evidence asserted since its creation.

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