The document discusses the history of ancient marijuana use as well as details about heroin, cocaine, and ecstasy. The oldest marijuana found was dated to be around 2700 years old and was discovered in a tomb in China. Heroin is an illegal opiate derived from poppy plants, though morphine can also be extracted and converted to heroin chemically. Cocaine is obtained from coca plants and was once used medically as an anesthetic but is now prohibited. Ecstasy is a synthetic psychoactive drug with stimulant and empathogenic properties that is often mistaken for similar drugs like MDA.