{"first_publish_date": "1986", "title": "Roots of violence in Black Philadelphia, 1860-1900", "covers": [4143420], "subject_places": ["Pennsylvania", "Philadelphia", "Philadelphia (Pa.)"], "lc_classifications": ["F158.9.N4 L35 1986"], "key": "/works/OL3337576W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL541008A"}}], "subject_times": ["19th century"], "subjects": ["Race relations", "African American criminals", "African Americans", "Violence", "Economic conditions", "Social conditions", "Employment", "History", "Philadelphia (pa.), history", "African americans, history", "African americans, pennsylvania, philadelphia", "Noirs", "Conditions sociales", "Crime et criminels", "Histoire", "Conditions \u00e9conomiques", "Noirs am\u00e9ricains", "Criminels noirs am\u00e9ricains", "Travail", "Relations raciales"], "type": {"key": "/type/work"}, "dewey_number": ["364.2/08996073074811"], "latest_revision": 8, "revision": 8, "created": {"type": "/type/datetime", "value": "2009-12-10T03:19:33.213203"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-11T19:54:41.985470"}}