Some so-called authorities claim that Muslims came to America hundreds of years before Columbus arrived in the New World. Are the claims true? Columbus' expedition represents the first major discovery of the Americas and the first appearance of non-Native Americans. The conventional wisdom is that Columbus ended tens of thousands of years of near-total isolation for the Native Americans. Since the Americas had been initially populated (probably between 13,000 BC and 11,000 BC) there had been no engagement with peoples from any other continent, save small ventures by the Norse into Northeastem...