A collection of current and past presidential advertising materials hangs on a wall in the visitor center of the New Hampshire State House in Concord, N.H.
Joseph Prezioso/AFP via Getty Images
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In If Then, historian Jill Lepore tells the story of Simulmatics. Founded in 1959, the company's "people machine" used a computer program to predict the impact of various political messages.
A collection of current and past presidential advertising materials hangs on a wall in the visitor center of the New Hampshire State House in Concord, N.H.
Joseph Prezioso/AFP via Getty Images
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