Samuel Frederick Gray was a British botanist and pharmacologist known for his influential work on medicinal plants and his pioneering role in the development of scientific herbalism.
Ge Hong was a renowned Chinese physician, alchemist, and writer of the Jin dynasty, celebrated for his contributions to traditional Chinese medicine and Daoist practices.
Hua Tuo was a renowned Chinese physician, surgeon, and herbalist of the late Eastern Han Dynasty, credited with pioneering the use of anesthesia in surgery.