Marijuana is a known flora whose primary component is the compound tetrahydrocannabinol. One variety from which marijuana originated from is cannabis Sativa and the drug itself is formed from the plant’s leaves and flowers. Marijuana is one of the oldest forms of recreational drugs which are still being used up until today even if there are still a lot of countries that pro. A brief history of marijuana2737 BC: This was the first recorded citation of marijuana use in Chinese ...