Smoke and incense have been around for a very long time, dating back as early as Mesopotamia times. People from Akkad, Larsa, and Babylonia commonly inhaled vaporized herbs indirectly by means of hot rocks, charcoal or a vessel. Various types of plants were used as ritual and/or religious ceremonies. Example, cannabis seeds were added to a vessel that was heated by being placed on hot rocks for a funeral for one of their kings. Experts theorized smoking was developed in t