CHICAGO, IL - FEBRUARY 19: President Barack Obama speaks to guests at the Gwendolyn Brooks College Preparatory Academy on February 19, 2015 in Chicago, Illinois. Obama used the event to designate Chicago's historic Pullman district a national monument. Dating back to the 1880s, the Pullman district, on the city's Far South Side, is one of the country's first company towns. The "town" was founded by George Pullman to house workers at his now-defunct Pullman Palace Car Co., which made luxurious rail cars. (Photo by Scott Olson/Getty Images)
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