Please support our content by purchasing your CBD oil here: BlueBird Botanicals: https://cbdschool.com/bluebird-cbdNuLeaf Naturals: https://cbdschool.com/nuleaf-cbdVisit CBD School: https://cbdschool.comReferencesCBD first discovered in wild hemp: https://pubs.acs.org/doi/abs/10.1021/ja01858a058Cannabis: A Complete Guide by Ernest Small: https://cbdschool.com/cannabis-complete-guide