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Betting on elections and sports games is nothing new: In the U.S., it has existed since 1800s, and the modern prediction market—which allows users to bet on the outcome of future events by buying and selling “Yes” or “No” contracts—was first devised in 1988 at the University of Iowa.Get the full story, here: https://t.co/8uERCEQXIF(Photo: Samuel Corum via Getty Images) ...