How the hamburger was named
Updated February 23, 2017 | Factmonster Staff 
The Question:
Why do they call it "hamburger" when it's made of beef?
The Answer:
The common belief is that the American hamburger borrowed its name from a dish called "Hamburg Style Beef" or "Hamburg Steak" which arrived in the United States from the German city of Hamburg in the 19th century. The dish was nothing more than chopped meat eaten raw.
The ground-beef hamburger and bun sandwich combination that we are all familiar with today first appeared in America at the 1904 World's Fair in St. Louis.
Here is a link to some more hamburger trivia from the Iowa Beef Industry Council and a link to a page dedicated to the 1904 World's Fair.
-The Fact Monster
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