18thcentury africa alabama america biography civilization clotilda(ship) collectivememory excavations(archaeology) greatbritain history merchantmariners modern moderncivilization mutiny newyorktimesbestseller nyt:combined-print-and-e-book-nonfiction=2018-05-27 racerelations slaveinsurrections slavery slaves slavetrade slavetraders socialscience transatlanticslavetrade trials(mutiny) unitedstates westafricans