Clive Ruggles is Emeritus Professor of Archaeoastronomy at the University of Leicester, U.K.
Gary Urton is Dumbarton Oaks Professor of Pre-Columbian Studies at Harvard University.
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Clive Ruggles is Emeritus Professor of Archaeoastronomy at the University of Leicester, U.K.
Gary Urton is Dumbarton Oaks Professor of Pre-Columbian Studies at Harvard University.
