4 Institute of Cognitive and Evolutionary Anthropology, University of Oxford, Oxford OX2 6PE, United Kingdom.
5 Magdalen College, University of Oxford, Oxford OX1 4AU, United Kingdom.
6 St. Benet's Hall, University of Oxford, Oxford OX1 3LN, United Kingdom.
7 School of Computer Science and Statistics, Trinity College Dublin, Dublin 2, Ireland.
8 Institute of English Studies, University of London, London WC1E 7HU, United Kingdom.
9 Seshat: Global History Databank, Evolution Institute, San Antonio, FL 33576.
10 Human Behaviour & Cultural Evolution Group, Department of Biosciences, University of Exeter, Cornwall TR10 9FE, United Kingdom.
11 Department of Anthropology, University College London, London WC1H OBW, United Kingdom.
12 School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287.
13 Institute of Archaeology, Adam Mickiewicz University, 61-614 Poznań, Poland.
14 Department of Archaeology, University of Cambridge, Cambridge CB2 3DZ, United Kingdom.
15 Department of History, University of California Santa Barbara, CA 93106.
16 Anthropology and Museum Studies, Lawrence University, Appleton, WI 54911.
17 Santa Fe Institute, Santa Fe, NM 87501.
18 Division for Byzantine Research, Institute for Medieval Research, Austrian Academy of Sciences, 1020 Vienna, Austria.
19 Department of Anthropology, Institute of History, Archaeology and Ethnology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690001, Russia.
20 Laboratory of Monitoring of Destabilization Risks, National Research University Higher School of Economics, Moscow 125267, Russia.
21 Institute of Archaeology, University College London, London WC1H 0PY, United Kingdom.
22 Big History Institute, Macquarie University, Sydney NSW 2109, Australia.
23 Department of Religious Studies, Chapman University, Orange, CA 92866.
24 East Asian Languages and Civilizations, Harvard University, Cambridge, MA 02138.
25 Department of Modern Languages & Literatures, Lehigh University, Bethlehem, PA 18015.
26 School of Historical Studies, Institute of Advanced Studies, Princeton, NJ 08540.
27 Department of Anthropology, University of Texas at Austin, Austin, TX 78712.
28 Integrative Research Center, Field Museum of Natural History, Chicago, IL 60605.
29 History, University of Iceland, IS-108 Reykjavik, Iceland.