Nurse

For most of recorded history, the word nurse meant a wet-nurse, a woman hired to breastfeed another woman's child. The Latin root nutrix meant "nursing mother," and the role carried no medical training or clinical authority.1 Caring for the sick was left to family members, religious orders, or servants with no formal preparation.

That changed in 1854, when Florence Nightingale arrived at the British military hospital at Scutari during the Crimean War. She found wounded soldiers lying in hallways, sewage seeping through floors, and a mortality rate above forty percent.2 Nightingale imposed hand-washing, ventilation, and clean linens. Within months, the death rate fell dramatically.

Nightingale returned to England a national figure and used that visibility to build an institution. In 1860, she opened the Nightingale Training School at St Thomas' Hospital in London, the first secular nursing school in the world.3 The curriculum separated nursing from domestic service and from religious charity. Students followed a structured program of clinical instruction and examination.

Her 1859 book Notes on Nursing sold widely and became a reference for hospital administrators across Europe and North America.4

By the end of the nineteenth century, nursing schools had opened in the United States, Canada, Australia, and across the British Empire, most modeled on Nightingale's curriculum.5 The occupation that had once meant breastfeeding now meant clinical expertise, patient observation, and professional certification.

Today, nursing is the largest healthcare profession in the world. The World Health Organization estimated in 2020 that there were roughly 28 million nurses globally, representing more than half of all health workers.6