[happy_path]

I don't want to belittle this piece of journalism but water-channel-based irrigation systems were already being used by Romans in Spain.

In the case of Valencia, there's even archaelogical evidence of pre-Roman irrigation systems [1][2].

[1] https://templersdeburjassot.wordpress.com/2018/05/20/breve-a...

[2] https://www.mapa.gob.es/ministerio/pags/Biblioteca/fondo/pdf...

[rkangel]

The achievement is as much a social one as a technological one. Having a common irrigation system shared by multiple competing businesses and having it operate well for hundreds of years is impressive.