The slave ship Mercúrio began acquiring enslaved Africans for transportation to Brazil.

Vessel: Mercúrio; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Silva, José Leite da. The voyage began at Rio de Janeiro on 25 April 1809. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Estimated mortality during the crossing: 21.0%. Recorded outcome: Voyage completed as intended.