"it might have been the race-track at the Derby to me"
Epsom Derby 2010
Creative Commons AttributionEpsom Derby 2010 - Credit: monkeywing, Wikimedia Commons
Epsom Derby 1821 by Géricault
Public DomainEpsom Derby 1821 by Géricault - Credit: Jean Louis Théodore Géricault

The Derby (also known as the Derby Stakes) is a flat horserace open to 3-year-old throughbred colts and fillies.

It was established in 1780 by the 12th Earl of Derby, and is run annually in early June at the Epsom Downs racecourse in Surrey.