News Archaeology The earliest evidence of tobacco use dates to over 12,000 years ago It’s unclear how ancient North American hunter-gatherers used the plant Burned tobacco seeds found at an archaeological site in Utah, including this seed shown here from multiple angles, date to more than 12,000 years ago. D. Duke et al/Nature Human Behavior 2021 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Bruce Bower October 11, 2021 at 11:00 am Ancient North Americans started using tobacco around 12,500 to 12,000 years ago, roughly 9,000 years before the oldest indications that they smoked the plant in pipes, a new study finds.