[42] From prehistoric situations, Egyptians very likely utilized the strength of the once-a-year flooding on the Nile to irrigate their lands, progressively Understanding to control Substantially of it via purposely constructed irrigation channels and "catch" basins.[forty three] The traditional Sumerians in Mesopotamia employed a posh process of canals and levees https://technological-advancement57861.designi1.com/57770758/not-known-details-about-teknologi-baru-pergigian