Dioscorides described the medicinal properties of hundreds of plants and minerals, including their appearance, distinguishing characteristics, and methods of preparation, making De Materia Medica one of the earliest known textbooks of pharmacology.
One of the most spectacular surviving copies is the Vienna Dioscurides, produced in Constantinople around 512 CE. It is exhibited in the Austrian National Library and listed in UNESCO’s Memory of the World Programme
A group of pharmacology faculty from Vanderbilt University visited Vienna, where they had the opportunity to see the "Vienna Dioscurides".