Great Dam of Ma'rib2022-10-13T22:09:45Zjbeckertag:atlantides.org,2022:pleiades/ef1a66fb6db94f05aefe8a53d0f4ca3cGreat Dam of Ma'ribtag:atlantides.org,2022:pleiades/ef1a66fb6db94f05aefe8a53d0f4ca3c2022-10-13T22:09:45ZThe Great Dam of Ma'rib, which spanned the gorge of the Wâdî Dhana and fed a massive irrigation system dependent on the seasonal flooding (sayl) of the wadi, dates originally to the eighth century BCE and was connected with the Sabaean and Himyarite kingdoms around the ancient city of Ma'rib in modern Yemen. It is reported to have failed catastrophically in the 8th century CE, leading to the collapse of irrigation-dependent agriculture and a mass depopulation of the area.15.397336 45.265590 15.405207 45.265590 15.405207 45.276675 15.397336 45.276675 15.397336 45.265590