1854: she went to Crimea to care for wounded soldiers as a nurse.
She found conditions in the army hospitals were appalling and began to change them for the better.
Patients were separated according to their illness.
Beds were spaced apart and clean air was allowed to circulate.
Patients were washed and bedding was changed regularly.
In six months she managed to reduce the death rate significantly.
To soldiers she was known as the 'Lady with the Lamp'. In 1859, she published a book, Notes for Nursing, which was a bestseller.