You're going back in time to the stone age and will not be coming back. which item do you bring with you?

Yellow dent corn is a hyperproductive grain great for alcohol production, livestock feed, and cheap food. It's the most common cultivar grown today, but it took thousands of years of selective breeding to make.

Platinum is exceptionally rare metal, but it's used as the catalyst, most notably in the Ostwald process, turning readily available ammonia into nitric acid, useful for everything from metallurgy, fertilizer, and explosives, including gunpowder.

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