Bald’s Leechbook is an Anglo-Saxon medical text from the 9th century. In 2015 one of the recipes (it used garlic, a bronze pot, and bile from a cow, among other things) was found to be successful in treating MRSA.
Scholars think that the diameters of these various circles on the wall of this church of San Nicola, in Pisa, Italy, were an intentional representation…