
TIL the Dujiangyan was originally constructed around 256 BC by the State of Qin and is part of the “three great hydraulic engineering projects of the Qin” for irrigation and flood control project which is still in use today.


TIL the Dujiangyan was originally constructed around 256 BC by the State of Qin and is part of the “three great hydraulic engineering projects of the Qin” for irrigation and flood control project which is still in use today.