The results dated the specimens to concerning 3780 and 3660 BCE. Alkaloid extraction yielded close to two% on the alkaloids such as mescaline in both samples. This means that native North Americans were more likely to have made use of peyote since not less than five-and-a-50 % thousand decades ago. https://zanetbcum.wikibriefing.com/3116924/the_fact_about_san_pedro_cacti_seeds_that_no_one_is_suggesting