What is the horse Man O' War known for?

Man o' War was a racehorse who captured the hearts of America in a time when horse racing was at it's prime.

He is considered the best; the champion of champions. Even to this day, some 90 years after he lived, and some 60 years after his death, he is considered the greatest horse to ever live, or set four hooves on a racetrack.

The only reason he didn't win the Triple Crown was because his owner refused to enter him in the Kentucky Derby.

He lost only once in a 21 race career. The only race he lost, was to a horse named Upset. When the race started, his back was facing the finish line and by the time he turned around the horses were pretty far away. Despite this, Man o' War still managed second place.

Among his children is the champion and Triple Crown winner, War Admiral. He is the grandsire of Seabiscuit, and he still appears in many of the Pedigrees of famous racehorses even to this day.

He is the horse that most racers are compared to. He is the "meterstick" of how great a racehorse is. He truly is "da mostest hoss ya Eva did see."