Sweep was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 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...

 stallion

Stallion (horse)

A stallion is a male horse that has not been gelded .Stallions will follow the conformation and phenotype of their breed, but within that standard, the presence of hormones such as testosterone may give stallions a thicker, "cresty" neck, as well as a somewhat more muscular physique as compared to...

 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 by James R. Keene

James R. Keene

James Robert Keene was a Wall Street stock broker and a major thoroughbred race horse owner and breeder.-Biography:He was born in London, England in 1838. He was fourteen years of age when his family emigrated to the United States in 1852...

, he was sired by Kentucky Derby

Kentucky Derby

The Kentucky Derby is a Grade I stakes race for three-year-old Thoroughbred horses, held annually in Louisville, Kentucky, United States on the first Saturday in May, capping the two-week-long Kentucky Derby Festival. The race is one and a quarter mile at Churchill Downs. Colts and geldings carry...

 winner Ben Brush out of the Domino

Domino (horse)

Domino was a 19th-century American thoroughbred race horse.-Background:A dark brown, almost black*, colt, Domino was sired by Himyar out of the mare Mannie Gray.Sam Hildreth writes in his book, "The Spell of the Turf" that he looked black was actually a deep chestnut. Himyar was out of speed...

 mare Pink Domino.

Sweep was a champion two year old with a long stride. Trained by James Rowe, he placed second in the Hopeful Stakes and the Saratoga Special Stakes

Saratoga Special Stakes

The Saratoga Special Stakes is an American grade II thoroughbred horse race run annually in mid-August at Saratoga Race Course in Saratoga Springs, New York. The race is for two-year-olds willing to race six and a half furlongs on the dirt....

 before he ran away with the Futurity Stakes, winning easily by over half a dozen lengths under a tight hold.http://query.nytimes.com/mem/archive-free/pdf?_r=1&res=9A02E6D61731E733A25752C3A96E9C946897D6CF&oref=slogin

Racing at three, with jockey James H. Butwell

James H. Butwell

James H. "Jimmy" Butwell was an American Racing Hall of Fame jockey. His birth year placed at the Family Search.org website states it as 1896...

 aboard, Sweep won the 1910 Belmont Stakes

Belmont Stakes

The Belmont Stakes is an American Grade I stakes Thoroughbred horse race held every June at Belmont Park in Elmont, New York. It is a 1.5-mile horse race, open to three year old Thoroughbreds. Colts and geldings carry a weight of 126 pounds ; fillies carry 121 pounds...

 in a time of 2:22. He was the favorite at 1 to 10 odds and won by six lengths over the only other starter, Duke of Ormonde. It was one of only five times in the history of the stakes race

Graded stakes race

A graded stakes race is a term applied since 1973 by the American Graded Stakes Committee of the Thoroughbred Owners and Breeders Association to thoroughbred horse races in the United States and Canada to describe races that derive their name from the stake, or entry fee, owners must pay...

 that just two horses have been entered.http://query.nytimes.com/mem/archive-free/pdf?res=9901E2D91530E233A25752C3A9639C946196D6CF

Retirement

Retired to Keene's Castleton Farm, Sweep was the leading sire by earnings in 1918 and again in 1925. He was not only a great sire but a great broodmare sire, with three daughters that produced Kentucky Derby

Kentucky Derby

The Kentucky Derby is a Grade I stakes race for three-year-old Thoroughbred horses, held annually in Louisville, Kentucky, United States on the first Saturday in May, capping the two-week-long Kentucky Derby Festival. The race is one and a quarter mile at Churchill Downs. Colts and geldings carry...

 winners. They were Beaming Beauty, dam of Bubbling Over

Bubbling Over (horse)

Bubbling Over was an American thoroughbred stallion racehorse. Bred in Kentucky, he was sired by English stakes winner North Star out of the mare, Beaming Beauty, who in turn was sired by the great Belmont Stakes champion, Sweep....

; Brushup, dam of War Admiral

War Admiral

War Admiral was an American thoroughbred racehorse, the offspring of the great thoroughbred Man o' War and the mare Brushup. He inherited his father's fiery temperament and talent, but did not resemble him physically...

; and Dust Whirl, dam of Whirlaway

Whirlaway

Whirlaway was an American champion thoroughbred racehorse.The chestnut horse was sired by English Derby winner Blenheim II, out of the broodmare Dustwhirl. Whirlaway was bred at Calumet Farm in Lexington, Kentucky....

. Both War Admiral and Whirlaway became Triple Crown champions.

His daughter Washoe Belle became the foundation mare to whom trace Forward Pass

Forward Pass (horse)

Forward Pass was an American Thoroughbred Champion racehorse who is the only horse in the history of the Kentucky Derby to have been declared the winner as the result of a disqualification....

, Alydar

Alydar

Alydar was a chestnut colt and an American thoroughbred race horse who was most famous for finishing a close second to Affirmed in all three races of the Triple Crown of Thoroughbred Racing, a feat not achieved before or repeated since.-Racing career:Trained by John M...

, Princess Turia, T.V. Lark., etc.

Another daughter, La Chica, became the foundation mare to whom trace Grey Flight and Native Dancer

Native Dancer

Native Dancer , nicknamed the Grey Ghost, was one of the most celebrated and accomplished Thoroughbred racehorses in history, the first horse made famous through the medium of television. He was one of the best horses produced in USA after the war...

, which brings us the Northern Dancer

Northern Dancer

Northern Dancer was a Canadian-bred Thoroughbred racehorse and the most successful sire of the 20th Century. The National Thoroughbred Racing Association calls him "one of the most influential sires in Thoroughbred history"....

 and Mr. Prospector

Mr. Prospector

Mr. Prospector was a thoroughbred racehorse foaled in Kentucky, whose descendants have been dominant in the United States Triple Crown of Thoroughbred Racing. He won half of his 14 career races.-Background:...

lines.

Other successful progeny include Eternal, General Thatcher, The Porter, Leonardo, Bon Homme, and Pen Rose.

Sweep died in 1936.