The Ancient Scythians were the first to discover the effects of marijuana. They would cut it down and burn it over fires in small tents getting cheeched up by hotboxing it. They also invented "hot knifing" where they heated a knife up till it was red hot then put bud on it and inhaled the vaporized trichomes. These were the earliest methods of vaporization and this is still used today but its pretty tricky to do, never tried tho.