On the night of August 17, 1823, the distinctly African sounds of blaring shell-horns and beating drums signalled the start of one of the most massive slave rebellions in the history of the Western Hemisphere, the uprising in the British colony of Demerara (now Guyana). That evening, nine to twelve thousand slaves surrounded the main houses of about sixty plantations, armed with cutlasses, knives fastened on poles, and guns. They broke down doors,...