The Percheron is a breed of draft horse that originated in the Huisne river valley in western France, part of the former Perche province from which the breed takes its name. Usually gray or black in color, Percherons are well muscled, and known for their intelligence and willingness to work. Although their exact origins are unknown, the ancestors of the breed were present in the valley by the 17th century. They were originally bred for use as war horses. Over time, they began to be used for pulling stagecoaches and later for agriculture and hauling heavy goods. In the late 18th and early 19th centuries, Arabian blood was added to the breed. Exports of Percherons from France to the United States and other countries rose exponentially in the late 19th century, and the first purely Percheron stud book was created in France in 1883. Before World War I, thousands of Percherons were shipped from France to the United States, but after the war began, an embargo stopped shipping. The breed was used extensively in Europe during the war, with some horses being shipped from the US back to France to help in the war effort. Beginning in 1918, Percherons began to be bred in Great Britain, and in 1918 the British Percheron Horse Society was formed. After a series of name and studbook ownership changes, the current US Percheron registry was created in 1934. In the 1930s, Percherons accounted for 70 percent of the draft horse population in the United States, but their numbers declined substantially after World War II. However, the population began to recover and as of 2009, around 2,500 horses were registered annually in the United States alone. The breed is still used extensively for draft work, and in France they are used for food. They have been crossed with several light horse breeds to produce horses for range work and competition. Purebred Percherons are used for forestry work and pulling carriages, as well as work under saddle, including competition in English riding disciplines such as show jumping. The size considered ideal for the Percheron varies between countries. In France, height ranges from 15.1 to 18.1 hands (61 to 73 inches, 155 to 185 cm) and weight from 1,100 to 2,600 pounds (500 to 1,200 kg). Percherons in the United States generally stand between 16.2 and 17.3 hands (66 and 71 inches, 168 and 180 cm), with a range of 15–19 hands (60–76 inches, 152–193 cm). American Percherons average 1,900 pounds (860 kg), and their top weight is around 2,600 pounds (1,200 kg). In Great Britain, 16.2 hands (66 inches, 168 cm) is the shortest acceptable height for stallions and 16.1 hands (65 inches, 165 cm) for mares, while weights range from around 2,000–2,200 pounds (910–1,000 kg) for stallions and 1,800–2,000 pounds (820–910 kg) for mares. They are generally gray or black in coloring, although the American registry also allows the registration of roan, bay and chestnut horses. Only gray or black horses may be registered in France and Britain. Many horses have white markings on their heads and legs, but registries consider excessive white to be undesirable. The head has a straight profile, broad forehead, large eyes and small ears. The chest is deep and wide and the croup long and level. The feet and legs are clean and heavily muscled. The overall impression of the Percheron is one of power and ruggedness. Enthusiasts describe the temperament as proud and alert, and members of the breed are considered intelligent, willing workers with good dispositions. They are considered easy keepers and adapt well to many conditions and climates. In the 19th century, they were known to travel up to 60 kilometres (37 mi) a day at a trot. Horses in the French registry are branded on the neck with the intertwined letters 'SP', the initials of the Société Hippique Percheronne. The Percheron breed originated in the Huisne river valley in France, which arises in Orne, part of the former Perche province, from which the breed gets its name. Several theories have been put forth as to the ancestry of the breed, though its exact origins are unknown. One source of foundation bloodstock may have been mares captured by Clovis I from the Bretons some time after 496 AD, and another may have been Arabian stallions brought to the area by Muslim invaders in the 8th century. Other possibilities are captured Moorish cavalry horses from the Battle of Poitiers in 732 AD, some of which were taken by warriors from Perche. A final theory posits that the Percheron and the Boulonnais breed are closely related, and that the Boulonnais influenced the Percheron when they were brought to Brittany as reinforcements for the legions of Caesar. It is known that during the 8th century, Arabian stallions were crossed with mares native to the area, and more Oriental horse blood was introduced by the Comte du Perche upon his return from the Crusades and expeditions into territory claimed by Spain. Blood from Spanish breeds was added when Rotrou III imported horses from Castile. No matter the theory of origin, breed historians agree that the terrain and climate of the Perche area had the greatest influence on the development of the breed. A possible reference to the horse is made in the 13th-century romance Guillaume de Dole, in which the title character asks for 'the Count of Perche's horse' to be made ready, possibly indicating the ''great horse,' which could accommodate an armored knight' and was bred in the geographical setting of the poem. During the 17th century, horses from Perche, the ancestors of the current Percheron, were smaller, standing between 15 and 16 hands (60 and 64 inches, 152 and 163 cm) high, and more agile. These horses were almost uniformly gray; paintings and drawings from the Middle Ages generally show French knights on mounts of this color. After the days of the armored knight, the emphasis in horse breeding was shifted so as to develop horses better able to pull heavy stage coaches at a fast trot. Gray horses were preferred because their light coloring was more visible at night. This new type of horse was called the 'Diligence Horse', because the stage coaches they pulled were named 'diligences'. After the stage coach was replaced by rail, the modern Percheron type arose as a slightly heavier horse for use in agriculture and heavy hauling work moving goods from docks to railway terminals. Arabian stallions were made available to Percheron breeders for use in breeding army mounts, beginning in 1760 at the royal stud at Le Pin. Between 1789 and the early 1800s, the Percheron was in danger of becoming extinct as horse breeding was suppressed during the French Revolution and its aftermath. Early histories of the breed point to two gray Arabian stallions from Le Pin, Godolphin and Gallipoly, as the blood that helped to restart Percheron breeding. However, later research found that Godolphin was a chestnut Arabian of ordinary conformation and no special worth, while Gallipoly was a gray saddle horse of unknown breeding. Modern breed historians contest that there was enough breeding stock left after the early 19th century to restart the breed without further Arabian influence, and state that it is unlikely that two horses of unremarkable breeding and conformation had a significant influence on the breed. Jean le Blanc, a founding stallion of the Percheron breed, was foaled in 1823. Today, all Percherons trace their ancestry to this stallion. At this time the breed also became larger, with horses from other French districts being imported to Perche to change the Percheron from a coach horse averaging 1,200–1,400 pounds (540–640 kg) to a draft horse averaging 2,000 pounds (910 kg). In 1893, the first Percheron stud book was created in France. By 1910, French registrations had risen to almost 32,000 horses. Between 1880 and 1920, Percheron breeders in France exported horses all over the world, including South Africa, South America, Australia and North America. Percherons were first imported into the United States in 1839, although only one of the initial four horses survived the ocean trip. Soon after, two stallions and two mares were imported; one mare died shortly after arrival and one stallion went blind and was retired within a year. Although the first importations of Percherons were less than successful, the remaining stallion, named Diligence, was credited with siring almost 400 foals. In 1851, three stallions were imported: Normandy 351, Louis Napoleon 281 and Gray Billy. Throughout their stud careers, each had significant influence on American draft horse stock. In the mid-19th century in the United States, Percheron stallions were crossed with homebred mares to improve the local stock, resulting in thousands of crossbred horses. After the American Civil War in the 1860s greatly reduced the number of horses, there was a significant need for large draft horses, especially in growing cities and in the expanding West. Large numbers of Percherons were imported to the United States beginning in the early 1870s, and they became popular with draft horse breeders and owners. In the 1880s, approximately 7,500 horses were exported to the United States. This extensive importation lasted until 1893, when the US experienced a financial panic, and virtually no Percheron imports occurred between 1894 and 1898. In addition, many existing horses were lost as people were too poor to purchase or care for large draft horses. In 1898, importations began again as abruptly as they had ceased, with an average of 700 horses a year imported between 1898 and 1905. In 1906 alone, over 13,000 horses were imported to the United States from France. In the American traveling circuses of the late 19th century and early 20th century, the Percheron was the most frequently seen draft horse. Drivers appreciated the breed's agility, stamina and quick-footed gait.