When Did the Incas Build Machu Picchu and Its
Radiocarbon, Vol 63, Nr 4, 2021, p 1133–1148 DOI:10.1017/RDC.2020.79 Selected Papers from the 1st Latin American Radiocarbon Conference, Rio de Janeiro, 29 Jul.–2 Aug. 2019 © 2020 by the Arizona Board of Regents on behalf of the University of Arizona. This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work. WHEN DID THE INCAS BUILD MACHU PICCHU AND ITS SATELLITE SITES? NEW APPROCHES BASED ON RADIOCARBON DATING Mariusz Zi´ołkowski1* • Jose Bastante Abuhadba2 • Alan Hogg3 • Dominika Sieczkowska1 • Andrzej Rakowski4 • Jacek Pawlyta4 • Sturt W Manning5 1Centre for Andean Studies at Cusco, University of Warsaw, Poland 2National Archaeological Park of Machu Picchu, Cusco, Peru 3Waikato Radiocarbon Laboratory, University of Waikato, Hamilton, New Zealand 4Division of Geochronology and Environmental Isotopes, Institute of Physics–CSE, Silesian University of Technology, Gliwice, Poland 5Cornell Tree Ring Laboratory, Cornell University, Ithaca, NY, USA ABSTRACT. According to the classical chronology of the Inca State, the ascension to power of Pachacuti Inca took place around AD 1438 and the construction of Machu Picchu began by AD 1450–1460. However, the improvement in the accuracy of radiocarbon (14C) dating resulting from the application of Bayesian analysis has changed our view of the historical chronology.
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