Introduction : Abolitionism and political argument in Britain and East Africa / Derek R. Peterson -- African political ethics and the slave trade / John Thornton -- And all that : why Britain outlawed her slave trade / Boyd Hilton -- Empire without America : British plans for Africa in the era of the American Revolution / Christopher L. Brown -- Ending the slave trade : a Caribbean and Atlantic context / Philip D. Morgan -- Emperors of the world : British abolitionism and imperialism / Seymour Drescher -- Abolition and imperialism : international law and the British suppression of the Atlantic slave trade / Robin Law -- Racial violence, universal history, and echoes of abolition in twentieth-century Zanzibar / Jonathon Glassman.