In 2737 BC, Chinese Emperor Sheng Nung used cannabis-infused tea in order to help those with memory, malaria, and rheumatism. This would be considered the first documented use of cannabis-derived medication
In 1839, the first study was published by Irish physician and medical researcher, William B O'Shaughnessy, who conducted a comprehensive investigation regarding the plant's therapeutic properties, leading other researchers to consider the medical applications.
George Washington, on the other hand, would record in his journal the practice of separating hemp. In 1942, an American chemist known as Rodger Adams changed the course of history when he successfully isolated the first cannabinoid, CBD.