No uncontroversial evidence of pre-Columbian contact between Africa and the Americas has ever been found. Regardless of whether any of the Malian ships ever reached the Americas, they apparently never returned to Africa and there were not any long-term economic consequences of the voyage. The river on the sea described by the survivor of the first expedition is presumably the
Canary Current. The inclusion of this fact in Musa's account indicates that Musa had some awareness of the oceanographic conditions of the open Atlantic. The Canary Current flows from West Africa to the Americas, which would have facilitated travel from Africa to the Americas but prevented it in the opposite direction.
Ivan van Sertima and Malian researcher Gaoussou Diawara proposed that the voyage reached the
New World. Van Sertima cites the abstract of Columbus's log made by
Bartolomé de las Casas, according to which the purpose of Columbus's third voyage was to test both the claims of King
John II of Portugal that "canoes had been found which set out from the coast of Guinea [West Africa] and sailed to the west with merchandise" as well as the claims of the native inhabitants of the Caribbean island of Hispaniola that "from the south and the southeast had come black people whose spears were made of a metal called
guanín ... from which it was found that of 32 parts: 18 were gold, 6 were silver, and 8 copper." However, scholars dispute evidence of any such voyage reaching the Americas, and that there are insufficient evidentiary grounds to suppose there has been contact between Africa and the
New World at any point in the pre-Columbian era. Haslip-Viera et al. noted in particular that "no genuine African artifact has ever been found in a controlled archaeological excavation in the New World".
Karl Taube, a professor at
UC Riverside specializing in pre-Columbian Mesoamerican history writes there "simply is no material evidence of any Pre-Hispanic contact between the Old World and
Mesoamerica before the arrival of the Spanish in the sixteenth century". ==Legacy==