One of the inheritances that the Incas owed to Wari Empire was the system of roads through the Andes, which they improved considerably. To pass rivers and streams, they armed quickly hanging bridges, made of ropes, which allowed the passage of their armies, their chasquis and the tribute charges they collected. The chasquis were the messenger of the Inca who were trained to walk long distances. It is known that the total production of a community was divided into three parts: one for the village, another for the Sun and another for the Inca. It means that two-thirds of the local production belonged to the Incas. The Incas, however, did grain reserves that could be distributed, in case from bad harvests, to other parts of the empire.
