Uburyo imihango yo mu mazi ya kera irimo kuvugurura imijyi ya none
Munsi y'icyuma kitagira umugese n'ibikoresho bidakoraho hari umuhango w'abantu umaze imyaka 4,000 - gusangira amazi rusange. Kuva ku miyoboro y'amazi y'Abaroma kugeza ku BuyapanimizuImigenzo, amasoko yo kunywa arimo kuvugurura isi yose mu gihe imijyi ikoresha intwaro zo kurwanya imihangayiko y’ikirere n’amacakubiri mu mibereho y’abantu. Dore impamvu abubatsi ubu bayita "ubuvuzi bwo kuvura imitsi ku mijyi."