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1. Hydraulic Engineering

   Linked via "drainage lines"

   The earliest substantial hydraulic works were developed contemporaneously across disparate cultures in response to the need for reliable agricultural sustenance. In Mesopotamia, the development of canal networks along the Tigris and Euphrates rivers in the fourth millennium BCE allowed for intensive farming previously impossible due to erratic flooding cycles. These early systems often relied on sophisticated, though empirically derived, knowledge of [sediment accretion r…