[antiRepublicrat]

However, what does that matter? Phonecian, Irish, Scandinavian, Chinese exploration fleets, fishermen, may have all visited portions of the Western Hemisphere. They came, they saw, they didn't do much about it.

Africans made successful journeys to the Americas in the 1100-1200s, but they used surface currents to get there so they didn't make it back. Another previous visit that doesn't matter as much as Columbus'.

[BadAndy]

"Africans made successful journeys to the Americas in the 1100-1200s, but they used surface currents to get there so they didn't make it back."

The evidence for this is what?