The slave ship Mariana departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Mariana; flag: Portugal / Brazil; rig: Sumaca. People recorded in connection with the voyage: Captain: Lopes, João Crisóstomo Rodrigues. The voyage began at Bahia, place unspecified on 30 August 1821. Principal recorded place where captives were acquired: Luanda (West Central Africa and St Helena). Principal recorded disembarkation place: Bahia, place unspecified. Recorded duration of the captives' Atlantic crossing: 39 days. Recorded outcome: Voyage completed as intended.