Florence Nightingale

Florence Nightingale is undisputedly one of the great female figures of the 19th Century, and many that would otherwise have died owed her a debt of gratitude. The exact nature of her contribution is open to discussion by revisionists, however what is little realised is that she was a mathematician, and her strength lay in being able to statistically analyse data and use that result to substantiate her arguments. In an age before Powerpoint, here is the diagram she drew to show how many deaths could be prevented.