The slave ship Mercury left the African coast carrying enslaved Africans toward Jamaica. About 303 people had been taken aboard.

Vessel: Mercury; flag: Great Britain; rig: Ship; estimated standardized tonnage: 236. People recorded in connection with the voyage: Investor: Collow, William; Captain: Lewis, John Carteret; Captain: Dobson. The voyage began at London on 28 March 1790. Principal recorded place where captives were acquired: Gold Coast, port unspecified. Principal recorded disembarkation place: Kingston. Recorded outcome: Returned direct to Africa after bringing enslaved people to the Americas.