ROLE OF THE EGYPTIAC 'OLD KINGDOM* 685 that this was the scene of successive experiences of growth, breakdown, and disintegration through which the Andean Civilization passed before its coastal birthplace was eventually united politically with a culturally parvenu highland province to constitute an Andean oecumenical empire as a result of the conquest of the lowland coastal states Chimu and Nazca by the highlander militarist Pachacutec (imperdbat circa A.D. 1400-48).* The reason why we are able to see Andean history now in this true perspective is because, in Peru, the coastal province that was the true birthplace of the culture happened, like the Sa'id in the Egyptiac World, to be 'a natural museum' in which climate and soil conspired to preserve the incriminating material evidence of Civilization instead of conspiring to destroy it; and, by the time of writing, this Peruvian 'natural museum* had been explored by the enterprise of experienced twentieth-century Western Americanists with a skill and energy that would have done credit to the pioneer nineteenth-century Western Egyptologists. The bearing of these triumphs of Archaeology in Peru on the interpretation of Egyptiac history was indicated by the revolutionary violence of the change in the interpretation of Andean history which these Peruvian archaeological discoveries had dictated. Before the archaeologists started operations in Peru, Modern Western knowledge of Andean history had been virtually confined to evidence concerning the Empire of the Incas; and, while this evidence had partly consisted in the massive material monuments of Cyclopean architecture constructed by these empire-building highlanders and their neighbours and predecessors on the Plateau, the main source of information at the disposal of Western scholars at that stage had been the Incaic imperial tradition preserved in Castilian literary dress and more or less mislead- ingly travestied in the process.3 In the picture presented in this tradition the rise and fall of the Incaic Power were equated with the beginning and end of Andean history; and, while Modern Western scholarship correctly divined, on the strength of the internal evidence, that little credence was to be given to a version of the Incaic tradition, picked up by the seven- teenth-century Spanish Jesuit historian Fernando Montesinos,3 which professed to carry the record of Incaic history back to a high antiquity, this well-justified rejection of an apocryphal prelude to genuine Incaic history was merely a negative result of historical criticism, and the most acute analysis of the Incaic traditional evidence would never have brought to light the authentic early history of the Andean Civilization in a coastal province of the Andean World where neither the Incas nor their predecessors in the highland province had pkyed any decisive part before the fifteenth century of the Christian Era. The true perspective of Andean history could only be brought to light by the instrument of Archaeology; and, when an archaeological ^ The life and work of the Herodian half-breed Garcilaso de la Vega have been noticed in IX. viii. 597» 3 A critique of Montesinos* Memorias Antiguas Historians y Politico* del Per& ™&te found in Baudin, L.: L'Empire SodaKste des Inka (Paris 1928, Institut d'Etfanologie), pp. 17-18. Montesinos wrote this book in A.D. i6sz, in the fifth generation after the Spanish conquest of the Andean Empire of the Four Quarters.