Nursing, in the broadest sense, is one of the oldest forms of human caregiving, with roots stretching back thousands of years to ancient civilizations. As a recognized profession with formal training, it dates to 1860. But the practice of dedicated individuals tending to the sick and injured has existed in some organized form since at least the early Middle Ages, and informally long before that.
Ancient and Early Caregiving
Every recorded civilization has evidence of people designated to care for the sick. Ancient Egyptian temples served as healing centers, and early Hindu texts describe attendants trained to assist physicians. Roman military camps had dedicated medical tents staffed by caregivers who treated wounded soldiers. None of these roles were called “nursing” at the time, but the core work, keeping the sick clean, fed, and comfortable while they healed, is recognizable as the foundation of what nursing would become.
The word “nurse” itself didn’t appear until the 14th century, originally referring to someone who cared for children or breastfed them (a “wet-nurse”). It wasn’t used to describe a person caring for sick patients until the 16th century.
Medieval Monasteries as Early Hospitals
The most organized form of nursing care before the modern era happened inside monasteries. Across Medieval Europe, monasteries housed anywhere from a dozen to hundreds of monks or nuns, along with servants and visitors. While their primary mission was religious, many functioned as community centers that provided education, charity, guest housing, and medical and hospice care, often in a dedicated hospital or infirmary.
These infirmaries varied enormously. A small monastery might have a single room for sick monks. A wealthy one could maintain an entire complex with a hospital, pharmacy, baths, bloodletting services, and a separate chapel. Some of the larger monasteries ran both an internal infirmary for their own members and hospitals serving the surrounding community. It’s worth noting that the main purpose of these medieval hospitals was caring rather than curing: providing shelter, food, and spiritual sustenance for people in need, like lepers, pilgrims, orphans, and widows. Medical treatment for illness was secondary.
Around 1070, the Order of St. John was founded in Jerusalem to serve poor pilgrims. Known as the Hospitallers, they cared for the sick and poor of all faiths, treating Christians, Muslims, and Jews alike. This represented one of the earliest organized efforts to provide inclusive healthcare, and the word “hospital” itself traces back to this tradition of hospitality for the vulnerable.
The Decline Before Professionalization
Nursing didn’t follow a straight line of progress. At the start of the 17th century, the profession entered a long stagnation. Nuns who had been working as nurses were forced to leave and stay home. Many monasteries, along with the hospitals inside them, shut down entirely. For roughly two centuries, nursing lacked structure, training, or social respect. Secular hospitals rose in their place, but the people working in them were often untrained, poorly paid, and low in social standing. This era gave nursing a reputation it would take decades to overcome.
Florence Nightingale and the Birth of Modern Nursing
The turning point came in 1860, when the Nightingale Training School for Nurses opened at St. Thomas’ Hospital in London. It was the first secular nursing school in the world. Florence Nightingale, already famous for her work during the Crimean War, designed it with a clear goal: to make nursing a respectable profession for women, built on dedication and discipline. All trainees lived in the Nightingale Home, wore uniforms, and adhered to a strict moral code. The curriculum emphasized the wellbeing of both nurses and patients, a philosophy that broke sharply from the neglect that had defined hospital care for centuries.
Nightingale’s influence spread fast. Her model of structured education, practical training, and professional standards became the template for nursing programs around the world.
The American Civil War’s Role
Across the Atlantic, the American Civil War (1861-1865) served as its own catalyst. The sheer scale of casualties forced the country to rethink who could provide medical care and how. The United States Sanitary Commission, organized by women including Dr. Elizabeth Blackwell, promoted the training of women as skilled nurses. Drawing on Nightingale’s techniques, American women elevated nursing from a domestic duty into a specialized profession. The war demonstrated that trained nurses saved lives, and there was no going back to the informal arrangements that came before.
From Training Schools to University Degrees
After Nightingale’s school proved the concept, nursing education grew rapidly. Hospital-based training programs multiplied in the late 1800s, but academic recognition took longer. In 1919, the University of Minnesota launched a five-year program leading to a bachelor’s degree in nursing, one of the first university-level nursing programs in the world. This shift mattered because it moved nursing education out of hospital apprenticeships and into universities, where nurses studied science, theory, and research alongside clinical skills.
By 1965, the profession expanded further when the University of Colorado launched the first nurse practitioner program. The idea was simple but powerful: underserved communities didn’t have enough physicians, partly because too few doctors were interested in working there. Training nurses to provide preventive care and health promotion in those communities filled a gap that the medical system had ignored. Time magazine called the first students a “new breed of nurse.”
Nursing Today
The global nursing workforce reached 29.8 million in 2023, up from 27.9 million just five years earlier. What began as monks and nuns offering shelter and food to the sick in monastery infirmaries is now the largest single profession in healthcare worldwide. Nurses today work in specialties from critical care to psychiatric health, hold doctoral degrees, prescribe medications, perform procedures, and lead research. The core of the work, though, hasn’t changed much from those medieval infirmaries: keeping people safe, comfortable, and cared for when they’re at their most vulnerable.