A contentious theory that the first Americans came here from Europe - not Asia - is challenging a century-old consensus among archaeologists, and a dig in Kenosha County is part of the evidence. The two leading proponents of the Europe theory admit that many scientists reject their contention, instead holding fast to the long-established belief that the first Americans arrived from Siberia via a now-submerged land bridge across the Bering Sea to Alaska. The first of the Europe-to-North America treks probably took place at the height of the last Ice Age more than 18,000 years ago, said Dennis Stanford, ...