The Triple Crown (The Triple Crown of Thoroughbred Racing) is made up of three races. The Thoroughbred horses are three-year olds. It is considered the most difficult feat--a great accomplishment--to win all three races. In the United States, the three races that make up the Triple Crown are:
The term, Triple Crown, originated in mid-19th century England and different nations where thoroughbred racing is popular each have their own Triple Crown series.
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