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![]() Slide of irrigation canals Photo: Robert Lende |
PRE-CERAMIC AND INITIAL PERIOD 3000 B.C.-1000 B.C. ![]() The invention of irrigation increased food resources and therefore populations increased. Dramatic advances in social and economic organization came about in order to direct the large amounts of labor needed to build and manage irrigation systems. Monumental ceremonial centers were built. In the highlands, agropastoralismùcomplementary farming and herdingùallowed societies to more fully exploit available resources. |
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