-1851 19thcentury africa africanamericans africanamericanstudents africanamericanstudies antislaverymovements backtoafricamovement colonialperiod(1600-1775) colonization drama emancipation ethnicstudies freeafricanamericans greatbritain his036040soc001000his054000 history johnnewton liberia ohio pennsylvaniaanti-slaverysociety pennsylvaniacolonizationsociety pennsylvaniasocietyforpromotingtheabolitionofslavery racerelations sklaverei slavery slaves socialhistory socialscience southernstates templeton unitedstates west