1. Department of History/History, Culture and Communication Studies, University of Oulu, 90014 Oulu, Finland [ritva.kylli@oulu.fi];
2. Department of Archaeology/History, Culture and Communication Studies, University of Oulu, 90014 Oulu, Finland [];
3. Department of Archaeology/History, Culture and Communication Studies, University of Oulu, 90014 Oulu, Finland