A map of Paraguay and surrounding area, illustrating where cinchona (quinine) was allegedly first discovered in 1626(?). Etching by D.V. Rossi.

Licence: Public Domain Mark

Credit: A map of Paraguay and surrounding area, illustrating where cinchona (quinine) was allegedly first discovered in 1626(?). Etching by D.V. Rossi. Wellcome Collection. Source: Wellcome Collection.