A native woman kidnapped by the Vikings may have been the first American to arrive in Europe around 1,000 years ago, according to a startling new study. The discovery of a gene found in just 80 Icelanders links them with early Americans who may have been brought back to Iceland by Viking raiders. The discovery means that the female slave was in Europe five centuries before Christopher Columbus first paraded American Indians through the streets in Spain after his epic voyage of discovery in 1492...