Charred seeds found in an ancient hearth used by hunter-gatherers in what's now Utah suggest that humans used tobacco more than 12,000 years ago -- 9,000 years earlier than previously documented and well before agriculture took root in the Americas.
Sign up for CNN's Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The tobacco plant has shaped the fortunes of humanity. Today, the substance is used and abused by a billion people around the world.
It is a habit that dates back to the Stone Age, new research shows. Charred seeds found in an ancient hearth used by hunter-gatherers in what's now Utah suggest that humans used tobacco more than 12,000 years ago -- 9,000 years earlier than previously documented and well before agriculture took root in the Americas.
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