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 Valenci

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-apunte-historico-de-los-regadios-en-el-reino-de-valencia-iberos-y-romanos/ https://templersdeburjassot.wordpress.com/2018/05/20/breve-a... [2] https://www.mapa.gob.es/ministerio/pags/Biblioteca/fondo/pdf/9999_3.pdf https://www.mapa.gob.es/ministerio/pags/Biblioteca/fondo/pdf...