The phrase was originally used by Benjamin Disraeli in his novel, "The Young Duke". It alluded to an unknown horse winning a race. It soon began to be transferred to political candidates, among the first of whom was James K. Polk. He won the 1844 Democratic Presidential nomination on the eighth ballot and went on to win the election.
It is an unknown or surprise candidate for an election
Horse racing
It comes from the latin equus meaning horse. :)
Henry M. Stanley in the summer of 1878.
This is a horse term. Flogging is beating with a whip. It does no good to beat a horse that is dead, because it will never get back up and work for you.
Where did the term derby originate?
Was Polk a "dark horse
for some one who enters the presidential debate late
The Knapstrup horse originated in Denmark.
The dark horse was beautiful.
The term Pogrom did not originate during the Holocaust.
Ride a dark horse in wilderness!
Hymns for a Dark Horse was created in 2007.