History of the hamburger

Evidence suggests that the United States was the first country where two slices of bread and a ground beef patty were combined into a "hamburger sandwich" and sold. There is some controversy over the origin of the hamburger because its two basic ingredients, bread and beef, have been prepared and consumed separately for many years in many countries before their combination. Shortly after its creation, the hamburger quickly included all of its currently typically characteristic trimmings, including onions, lettuce, and sliced pickles.

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