Human interaction with cannabis as a medicinal plant stretches well beyond recorded history. It is only in the past half century that the components of medicinal cannabis efficacy have been studied. The majority of phytocannabinoids were discovered in the 1960’s.
Cannabidiol (CBD) was discovered in 1963, tetrahydrocannabinol (THC) in 1964, cannabigerol (CBG) in 1964, cannabichromene (CBC) in 1966, cannabidivarin (CBDV) in 1969, and tetrahydrocannabivarin (THCV) in 1970. Research focused primarily on psychoactive THCA and its psychotropic decarboxylated form THC. It is only recently that science has turned back to looking at the other phytocannabinoids and their medicinal benefits.