Ndedzipi dziri dzimwe dzenzanga dzekare zvikurusa dziri kutanga?
Nzanga yekare zvikurusa inozivikanwa yamaguta inodzokera shure kuna 4000-3500 B.C. uye inozivikanwa seMesopotamia (zvinoreva, pakati penzizi mbiri) iyo iri Iraq yemazuva ano, Kuwait neSiria. Zvimwe zvezvinhu zvakaitwa kuMesopotamia zvinosanganisira Code raHammurabi, ruzivo rwemitumbi yomudenga rwevaBhabhironi uye gadziriro yenhamba yebhesi 60 (iyo yakava hwaro hwemasekonzi 60, maminitsi 60 uye denderedzwa remadhigirii 360. Kubudirira kweEgipita yekare ((3100 BC) iyo yaiva imwe yemadzimambo ane simba zvikuru ayo akanga aripo kwemakore anoda kusvika 3000. Yakanga yakavakirwa parwizi rwaNire urwo nhasi rwaizotambanuka kubva kuSyria kuenda kuSudan. Kunze kwemapiramidhi, anozivikanwa nokuda kwamakuva, kugadzirwa kwemiviri uye makuva. Vakagadzirawo zuva remaawa 24 pamwe chete nekarenda yamazuva 365. Nzanga yacho yakaguma munenge muna 332 B.C. Alexander Mukuru paakaikunda zvinobudirira. Munenge muna 2500 B.C., nzanga yomupata weIndus yakabudirira. Zita racho rinobva mumupata worwizi rweIndus unobatanidza India, Pakistan neAfghanistan dzanhasi. Inorangarirwa kuva imwe yamarudzi akaoma kunzwisisa zvikurusa ane kuronga maguta kwakarongwa nemigero yakakodzera nemigero yemvura. Vakanga variwo vavambi vane zvibereko zvikurusa vachipa uremu hwakaenzana nezviyero, simbi dzesimbi nemhangura, ndarira, mutobvu, uye tsanga nokuveza zvisimbiso. Pachine gakava pakati pevanyori venhau dzakaitika uye pane zvimwe zvidzidzo zvinokarakadza kuti budiriro yomupata weIndus ingangove yakatangira zvose zviri zviviri vaEgipita vakare navaMesopotamia. Zvisinei, pane zvakawanda zvisingazivikanwi pane zvinozivikanwa pamusoro porudzi urwu. Kunofungidzirwa kuti kuchinja kwemamiriro okunze kwakakonzera kuderera kwouyu rudzi rwomunguva yemberi rwakanga rwuchienderera mberi munenge muna 1700 B.C.