Shortly after winning its independence in 1804, Haiti's leaders realized that if their nation was to survive, it needed to build strong diplomatic bonds with other nations. Haiti's first leaders looked especially hard at the United States, which had a sizeable free black population that included vocal champions of black emigration and colonization. In the 1820s, President Jean-Pierre Boyer helped facilitate a migration of thousands of black Americans to Haiti with promises of ample land, rich commercial prospects, and most importantly, a black state. His ideas struck a chord with both blacks...