[42] From prehistoric periods, Egyptians possible applied the power of the yearly flooding on the Nile to irrigate their lands, steadily learning to regulate much of it via purposely created irrigation channels and "catch" basins.[43] The ancient Sumerians in Mesopotamia used a posh program of canals and levees to divert https://juliusjnjvb.wikicarrier.com/821069/top_teknologi_pembuatan_secrets