Relier Pairs Urban DevelopmentVersion en ligne Reforms par Jefferson County ESC 1 Tenement Housing 2 New York City 3 Jane Addams 4 Rupert Blue 5 Hull House Surgeon General who improved water sanitation and public education about disease in both rural and urban areas serve needy immigrants in Chicago, Illinois Social worker who devoted her life to helping the poor and promoting world peace were notoriously small in size, most contained no more than two rooms By 1900, more than 80,000 tenements had been built in this city