1776–1830: Mortality rates on slaving voyages to Brazil did not vary significantly between widely separated arrival regions, even though each province drew f…

1776–1830: Mortality rates on slaving voyages to Brazil did not vary significantly between widely separated arrival regions, even though each province drew from a different mix of African embarkation points. Any significant differences in the total duration of the Middle Passage were largely the result of South Atlantic ocean current patterns. Fewer captives died during these Brazilian voyages in the late eighteenth and early nineteenth centuries compared to the earlier periods of the trade. This trend suggests a standardization of slaving practices and perhaps better medical or nutritional management by Portuguese and Brazilian crews.