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Tools and machines have allowed us to overcome our physical limitations, and become the most successful species on Earth. But tools are also transforming what it means to be human.
Man uses plants to feed, heal and clothe himself, to build his world and even to alter how he feels. The use of plants like corn, tobacco and cotton become such an important part of our lives that they play a central role in our evolution, and lead to everything from War to Prohibition.
Five thousand years ago man first throws a handful of rocks into a campfire and stumbles upon a discovery that changes the world: Metal. Copper, Tin and Bronze empower the ancient world and allow empires to expand, armed with sharp, hard-wearing weapons.