· The history of Pharmacognosy is synonymous with the history of medicine which originates in the health-related activities of the most primitive race of the remote past
· Description of history of pharmacognosy is (therefore) embedded in the history of natural products in medicine
· They acquired knowledge of medicinal properties of plants in the following ways
§ By guesswork or trial and error while searching food.
§ By superficial resemblance between plant parts and affected organs.
§ By accidental discovery.
· The history of pharmacognosy can be divided into;
§ The Ancient Egyptian Period
§ The Babylonians
§ Old Indian medicine
§ The old Chinese medicine
§ The Greek and Romans
§ The Arabic Era
§ The 18th Century Pharmacognosists
§ The 19th Century Pharmacognosy
The 20th Century Pharmacognosy
Evans, W. C. (2009). Trease and Evans Pharmacognosy. India: Reed Elsevier Limited.