The slave ship Polifemo left the African coast carrying enslaved Africans toward Brazil. About 183 people had been taken aboard.

Vessel: Polifemo; flag: Portugal / Brazil; rig: Schooner. People recorded in connection with the voyage: Captain: Blanchart, Manoel Pereira de Souza; Investor: Santos, Francisco José dos. The voyage began at Rio de Janeiro on 12 May 1820. Principal recorded place where captives were acquired: Mozambique (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 56 days. Recorded outcome: Voyage completed as intended.