Veterinary medicine has roots stretching back roughly 5,000 years, with the earliest known animal healer recorded around 3000 BCE in Mesopotamia. But as a formal, organized profession, it began in 1761 when the first veterinary school opened in Lyon, France. The story between those two dates covers ancient texts, medieval folk remedies, and a devastating cattle plague that finally convinced a king to fund proper training.
The First Known Animal Healer
Around 3000 BCE, at the start of the Bronze Age, a man named Urlugaledinna lived in Mesopotamia, the region spanning modern-day Iraq, Syria, Iran, Turkey, and Kuwait. He was recognized as an expert at healing animals and is sometimes called the “father of veterinarians.” We don’t have detailed records of his methods, but his reputation survived in written references, making him the earliest named individual associated with animal medicine.
The word “veterinary” itself traces back to Latin. One explanation links it to veterinus, meaning “pertaining to cattle,” possibly derived from vetus (old), as if referring to animals worn down by past work. Another theory, from the Roman writer Flaccus around 14 CE, connects it to vehere, meaning “to draw or carry,” the same root as “vehicle.” Pack animals were called veterinae (beasts of burden), and the places where they were kept were called veterinarium.
Ancient Texts on Animal Disease
The oldest surviving veterinary document is the Kahun Papyrus from Egypt, dating to roughly 1800 BCE. It describes diseases and treatments for dogs and cattle with surprising specificity. For a bull showing symptoms like running eyes, swollen neck, and reddened gums, the papyrus instructs the healer to lay the animal on its side, sprinkle it with cold water, rub its body with gourds or melons, and fumigate it. If the animal didn’t improve, its eyes would be bandaged with fire-lit linen to stop the discharge. One passage captures the uncertainty ancient healers felt: “He that has a cut either dies with it or lives with it.”
In ancient India, a scholar named Shalihotra produced a major treatise on horse and elephant care, the Shalihotra Samhita, written in roughly 12,000 verses in Sanskrit. It covered anatomy, physiology, surgery, and disease for horses and elephants, including preventive measures. Shalihotra’s work was detailed enough to describe the body structures of different breeds of horses and explain how to determine a horse’s age from its physical features.
Medieval Europe and the Farrier Tradition
For most of the Middle Ages, animal care in Europe was not a profession in any modern sense. Horses were tended by farriers, skilled tradespeople who shoed horses and handled basic medical problems. Other livestock fell to “cowleeches,” who generally had less training and relied on folk cures, herbal remedies, salt, soot, and even magic spells. There was no formal education, no standardized knowledge, and no clear distinction between superstition and effective treatment. This patchwork system persisted for centuries, and animal owners had little recourse when serious disease struck.
A Cattle Plague Changed Everything
The single event most responsible for turning animal medicine into a real profession was rinderpest, a devastating viral disease that swept through European cattle herds in the 1700s. Rinderpest killed enormous numbers of livestock, threatening food supplies and economies across the continent. In France, King Louis XV was desperate for a solution.
Claude Bourgelat, an equerry renowned for his expertise in horsemanship and horse medicine, had long argued that animal healers needed proper scientific training. He wrote that anyone wanting to practice veterinary medicine could not “acquire a sufficient degree of education, since we do not have schools for teaching.” Bourgelat understood the broader movement among French thinkers who saw improving farm animal health as essential to the national economy.
In 1761, with backing from Louis XV’s minister Henri-Léonard Bertin, Bourgelat opened the world’s first veterinary school in Lyon. The king initially gave it only a short-term grant. But rinderpest and other epidemic animal diseases spreading through France gave Bourgelat and his students the chance to prove the value of standardized scientific training. The school survived, and within decades, veterinary colleges began opening across Europe. The profession had formally begun.
Veterinary Education Reaches the United States
It took nearly a century for formal veterinary education to cross the Atlantic. The first American veterinary institution was the Veterinary College of Philadelphia, founded in 1852. The Boston Veterinary Institute followed in 1854. Neither school kept records of its graduates, so the New York City College of Veterinary Surgeons, established in 1857, may have been the first to actually produce documented graduates. The American Veterinary Medical Association recognizes the Philadelphia school as the country’s first. Between 1852 and 1938, a total of 41 veterinary institutions opened in the United States, most of them private.
From Horses to Household Pets
For most of its modern history, veterinary medicine focused almost entirely on horses and livestock. Veterinary schools were connected to agricultural colleges, and their research centered on farm animal health and diseases that could jump from animals to humans. The profession was rural by design, and there was an active bias against admitting students from cities.
The arrival of the automobile in the early 1900s upended that model. As cars replaced horses in cities, urban veterinary colleges lost their primary patient base. By the mid-1920s, nearly all urban veterinary schools had closed, with the University of Pennsylvania and Ohio State University as the exceptions. Companion animals were growing more popular in American homes, but the veterinary establishment didn’t consider them a priority for education or research.
That gap was partially filled by independent institutions like the Animal Medical Center in New York City and the Angell Memorial Medical Center in Boston, which pioneered advances in pet care outside the academic system. Over the following decades, public willingness to invest in pet health grew steadily, and veterinary curricula gradually shifted to accommodate practitioners’ interest in companion animals. Looking across the last 150 years, the profession has transformed from one dominated by equine practitioners, to one focused on agriculture and public health, to one centered largely on small-animal and companion-animal care.