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Then Caterpillar, ADM, and John Deere are headquartered downstate, plus University Of Illinois, which has a big super computer. And of course there is also a particle accelerator that is run by Argo, I think, and the US Government. No doubt some I have missed.
People downstate take a lot of trips because there is nothing but corn and soybean fields there. I know this for fact for I am downstate.