The millenarian culture of Peru is the fruit of profound empirical knowledge and long, meticulous observation. The merit of the Incas was that they used and applied the ancient knowledge, customs and accomplishments of Andean man from centuries ago and used them properly to satisfy the needs of the expanded State.

It is surprising how the Inca organizational system was applied in a territory which took in a good part of the South American continent facing the Pacific Ocean. All this was carried out without having writing, therefore the transition of applied technology had to be oral and practical. The Inca State based its socioeconomic meshing on symmetrical and asymmetrical reciprocity, the redistribution of resources and exchange, this last feature emphasized between the coastal groups.

The question which arises is: How could a State be so organized when it didn't have anything like writing to establish its statistics, indispensable to economic management?