The coronavirus outbreak has stopped the world in its tracks and made the word quarantine a part of everyday life, and vocabulary. The word describing the practice of isolation as a way to fight epidemics, of course, is much older and there is a Bulgarian town that is an example of how instrumental quarantining could be in saving lives.
In 1828, the decisive action of a single man protected Silistra, on the River Danube, from an outbreak of cholera. Astonishingly, this man was not a general or a prime minister, but a modest Jewish religious scholar.