The slave ship Boa União arrived with enslaved Africans in Brazil. About 396 people had been taken aboard and approximately 356 arrived.

Vessel: Boa União; flag: Portugal / Brazil. People recorded in connection with the voyage: Investor: Martins, João Rodrigues; Captain: Cunha, Ricardo Xavier da. The voyage began at Southeast Brazil, port unspecified. 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: 30 days. Estimated mortality during the crossing: 10.0%. Recorded outcome: Voyage completed as intended.