Dioscorides
Dioscroides was a Greek physician who was born in the first century AD. He traveled great distances in his lifetime and used his travels to study the plants and nature around him. After long studies of plants were conducted, and experiments as well, Dioscorides wrote De Materia Medica. De Materia Medica is a pharmacopoeia (a book, or piece of work, published by officials in the government to provide the public with drug qualities and standards.
Grout, James. “Dioscorides: De Materia Medica.” Dioscorides: Materia Medica, Encyclopedia Romana, 12 Mar. 2023, https://penelope.uchicago.edu/~grout/encyclopaedia_romana/aconite/materiamedica.html.