The slave ship Especulação departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Especulação; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Investor: Santos, Francisco José dos; Captain: Silva, Manoel Pacheco da. The voyage began at Rio de Janeiro on 14 April 1820. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 71 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.