The slave ship Boa Harmonia arrived with enslaved Africans in Brazil. About 475 people had been taken aboard and approximately 436 arrived.

Vessel: Boa Harmonia; flag: Portugal / Brazil; rig: Curveta. People recorded in connection with the voyage: Captain: Viana, José Pinto de Araújo; Captain: Lessa, Bernardo Francisco; Investor: Lessa, Bernardo Francisco. The voyage began at Rio de Janeiro on 24 April 1819. Principal recorded place where captives were acquired: Luanda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 100 days. Recorded outcome: Voyage completed as intended.