Southeastern Norway is the most populous part of Norway today. Based on an analysis of more than 150 settlements along Oslo Fjord, the area apparently also appealed to Stone Age people. Eleven thousand years ago at the end of the last ice age, Norway was buried under a thick layer of ice. But it didn't take long for folks to wander their way north as the ice sheet melted away. The first traces of human habitation in Norway date from roughly 9500 BC. Steinar Solheim is an archaeologist at the University of Oslo's Museum of Cultural History who has worked...