1745-1797 1808- 1808-1863? 1813-1897 1818-1895 africanamericans africandiaspora america american autobiography biafra bightof biography blacks contributionsinautobiographydouglass contributionsinautobiographynorthup douglass english english-speakingcountries equiano ethnicidentity frederick greatbritain historiography history historyandcriticism igbo(africanpeople) intellectuallife jacobs mary northup olaudah prince racerelations region slavenarratives slaves slaves'writings slavetrade socialconditions solomon to1863 unitedstates voiceinliterature