Book excerpt: A behind-the-scenes history of the Bluegrass State’s iconic sport. Horse racing and the Commonwealth of Kentucky are synonymous. The equine industry in the state dates as far back as the eighteenth century, and some of that history remains untold. The Seventeenth Earl of Derby made the trip from England to Louisville for the famed Kentucky Derby. Many famous African American jockeys grew up in the area but fled to Europe during the Jim Crow era. Gambling on races is a popular pastime, but betting in the early days caused significant changes in the sport. Hidden History of Horse Racing in Kentucky details the rich and the lesser-known history at the tracks in the Bluegrass State.