Prove It was an American Thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

 racehorse

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

. Bred and raced by Rex C. Ellsworth, he was sired by Endeavour, an Argentine-bred

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 who also sired Corn Husker, Porterhouse

Porterhouse (horse)

Porterhouse was an American Champion Thoroughbred racehorse. Bred by Liz Person and raced under her Llangollen Farm banner, Porterhouse was a son of the Argentine-bred Endeavour who also sired Corn Husker, Prove It and Pretense, three top runners who each won the Santa Anita Handicap. His dam was...

 and Pretense. Out of the mare, Time To Khal, damsire Khaled

Khaled (horse)

Khaled was a British Thoroughbred racehorse best known as a sire in the United States. Bred and raced in England by the H. H. Aga Khan III, Khaled was sired by Hyperion, the 1933 Epsom Derby and St. Leger Stakes winner and a six-time Leading sire in Great Britain & Ireland. Hyperion was a son of...

 was a multiple stakes winner in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 for the Aga Khan III

Aga Khan III

Sir Sultan Muhammed Shah, Aga Khan III, GCSI, GCMG, GCIE, GCVO, PC was the 48th Imam of the Shia Ismaili Muslims. He was one of the founders and the first president of the All-India Muslim League, and served as President of the League of Nations from 1937-38. He was nominated to represent India to...

 who was purchased by Ellsworth and brought to stand at his Chino, California

Chino, California

Chino is a city in San Bernardino County, California, United States. It is located in the western end of the Riverside-San Bernardino Area and it is easily accessible via the Chino Valley and Pomona freeways....

 stud

Stud (animal)

A stud animal is a registered animal retained for breeding. The terms for the male of a given animal species usually imply that the animal is entire—that is, not castrated—and therefore capable of siring offspring...

 ranch. Khaled was the sire of U.S. Racing Hall of Fame

National Museum of Racing and Hall of Fame

The National Museum of Racing and Hall of Fame was founded in 1950 in Saratoga Springs, New York, to honor the achievements of American thoroughbred race horses, jockeys, and trainers...

 inductee, Swaps

Swaps (horse)

Swaps was a California bred American thoroughbred racehorse. He was the son of Khaled, a stallion imported from the Aga Khan's stud in Europe. Swaps goes back to the immortal Man o' War, via his dam, Iron Reward, through the Triple Crown winner, War Admiral. In the list of the top 100 U.S...

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Prove It had a highly successful racing career that included wins in the prestigious Santa Anita Handicap

Santa Anita Handicap

The Santa Anita Handicap is an American Thoroughbred horse race held annually in early March at Santa Anita Park in Arcadia, California. It is a Grade I race for horses four years old and up , and is considered the most important race for older horses in North America during the winter racing season...

 (1961) and Hollywood Gold Cup

Hollywood Gold Cup

The Hollywood Gold Cup is an American Grade I stakes race for thoroughbred horses inaugurated in 1938 at Hollywood Park Racetrack in Inglewood, California. It was run as a handicap race until 1997 when it was switched to weight-for-age conditions...

 (1962), plus he set an Arlington Park

Arlington Park

Arlington Park is a horse race track in the Chicago suburb of Arlington Heights, Illinois. Horse racing in the Chicago region has been a popular sport since the early days of the city in the 1830s, and at one time Chicago had more horse racing tracks than any other major metropolitan area...

 track record in the 1962 Benjamin F. Lindheimer Handicap. Prove It was retired to stud where as a sire, his offspring met with modest success in racing. Through daughter, Proof Requested, he was the damsire of 1983 Preakness Stakes

Preakness Stakes

The Preakness Stakes is an American flat Thoroughbred horse race for three-year-olds held on the third Saturday in May each year at Pimlico Race Course in Baltimore, Maryland. It is a Grade I race run over a distance of 9.5 furlongs on dirt. Colts and geldings carry 126 pounds ; fillies 121 lb...

 winner, Deputed Testamony

Deputed Testamony

Deputed Testamony is an American Thoroughbred racehorse best known for winning the Classic Preakness Stakes. Deputed Testamony is the last of eight Maryland-breds to win the Preakness Stakes and is one of only eleven colts from the state to win a triple crown race.Bred and raced by Bonita Farm and...

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