Who was the first to smoke it?

Well in actuality History might not actually say or put there finger on who were the 1st smoker but the first people to be on the Earth were probably Africans or the Indians. It could have been BOTH Africans and Indians. That's probably how we Africans got here, so I'd most likely say that Africans AND Indians

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according to International Tobacco Online, Mayans were the first people to smoke. it is primarily used for rituals and of important people like Shaman.