A. H. Sayce,
The archæology of the cuneiform inscriptions
(1908)
“ The shadûf, which is still used in Upper Egypt, can be traced back pictorially to the time of the Eighteenth dynasty, but the basin system of irrigation with which it was connected was already of immemorial antiquity. It is a simple yet most effective invention, and on that account perhaps the less likely to have been independently invented, for it is always the obvious which remains longest unnoticed. In the modern shadûf a long pole is laid across a beam which is supported at either end upon other poles or on pillars of brick or mud ”
