1. A reaction between an acid and a base that yields a salt and water. 2. The rendering ineffective of an action or substance, such as a drug. 3. The change of an acid solution to neutral by titration of an alkaline solution. 4. The change of an alkaline solution to neutral by titration of an acid solution.
Marijuana originated in Central and Southern Asia. It was discovered growing in the wild in China. China is known principally for its tea and opium, the great number of its people, itâs massive high-rises, but not really known for the discovery place of marijuana.
The use of marijuana quickly spread from China to India, and then to northern Africa. The use of marijuana reached the continent of Europe as early as A.D. 500. In India, marijuana was quite clearly being used recreationally, even in these early times.n 1970, marijuana was classified as a Schedule I drug, meaning it had the highest abuse potential and was not acceptable for medical use. At this time most marijuana came mainly from Mexico.