The slave ship Mariana left the African coast carrying enslaved Africans toward Brazil. About 500 people had been taken aboard.

Vessel: Mariana; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Captain: Domingos, Jerônimo; Investor: Barros, João de Santiago. The voyage began at Rio de Janeiro on 2 August 1819. Principal recorded place where captives were acquired: Quilimane (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 63 days. Recorded outcome: Voyage completed as intended.