Ugushyingo 19 buri mwaka ni IsiUmusaraniUmunsi. Umuryango mpuzamahanga w’ubwiherero urakora ibikorwa kuri uyu munsi kugirango abantu bamenye ko ku isi hakiri abantu miliyari 2.05 badafite uburinzi bukwiye bw’isuku. Ariko kuri twe dushobora kwishimira ubwiherero bugezweho, twigeze twumva neza inkomoko yubwiherero?
Ntabwo bizwi uwahimbye ubwiherero. Abanya-Ecosse ba mbere n'Abagereki bavugaga ko ari bo bahimbye mbere, ariko nta kimenyetso. Nko mu 3000 BGC mugihe ca Neolithic, hariho umugabo yitwa Skara Brae mugace ka Scotland. Yubatse inzu ifite amabuye akingura umuyoboro ugera ku mfuruka y'inzu. Abahanga mu by'amateka bemeza ko iki gishushanyo cyari ikimenyetso cy'abantu bo hambere. Intangiriro yo gukemura ikibazo cyumusarani. Ahagana mu 1700 mbere ya Yesu, mu ngoro ya Knossos i Kirete, imikorere n'imiterere y'ubwiherero byagaragaye neza. Imiyoboro yigitaka yahujwe na sisitemu yo gutanga amazi. Amazi yazengurukaga mu miyoboro y'ibumba, yashoboraga koza umusarani. Uruhare rw'amazi.
Kugeza mu 1880, igikomangoma Edward w'Ubwongereza (nyuma Umwami Edward VII) yahaye akazi Thomas Crapper, umuyoboke uzwi cyane w'icyo gihe, kugira ngo yubake ubwiherero mu ngoro nyinshi z'umwami. Nubwo Crapper bivugwa ko yahimbye ibintu byinshi bijyanye nubwiherero, Crapper ntabwo ari we wahimbye umusarani ugezweho nkuko buri wese abitekereza. Niwe wa mbere wamenyesheje rubanda ubwiherero bwe mu buryo bw’imurikagurisha, kugira ngo abaturage baramutse basannye ubwiherero cyangwa bakeneye ibikoresho bimwe na bimwe, bahita bamutekereza.
Igihe ubwiherero bwa tekinoloji bwatangiye rwose ni mu kinyejana cya 20: flves, ibigega by'amazi, hamwe n'impapuro z'umusarani (byavumbuwe mu 1890 kandi bikoreshwa cyane kugeza mu 1902). Ibi bintu byavumbuwe nibiremwa bisa nkibito, ariko ubu bisa nkibintu byingenzi. Niba ukibitekerezaumusarani ugezwehontabwo byahindutse cyane, noneho reka turebe: Mu 1994, Inteko ishinga amategeko y'Ubwongereza yemeje itegeko rya politiki y’ingufu, risaba ibisanzwegusukura umusaranikwoza litiro 1.6 gusa icyarimwe, kimwe cya kabiri cyakoreshejwe mbere. Politiki yarwanywaga n’abaturage kubera ko ubwiherero bwinshi bwarafunzwe, ariko amasosiyete y’isuku yahise atangiza uburyo bwiza bw’ubwiherero. Izi sisitemu nizo ukoresha burimunsi, izwi kandi nka kijyambereumusaraniSisitemu.
