<prompt> Pfupisa nyaya yacho: Chitarisiko chomuenzaniso mukuru icho vanhu vazhinji vanovavarirawo, asi kunoratidzika kuti madzitateguru edu apakuvamba angave akanga ane mahudyu akafanana neomunhu akasiyiwa uye makumbo matete nenzira yomuzvarirwo. Masayendisiti ari kuongorora chiuno chine makore 1.9 miriyoni neitsvo akawana kuti rudzi rwavanhu vapakuvamba rwakafa zvino rwakanga rune miviri yakasiyana zvikuru neyedu. Chinyorwa chacho chinofungidzirwa kuti ndecheHomo rudolfensis kana kuti Homo habilis, marudzi maviri emadzitateguru evanhu akavapo muAfrica. Tsandanyama yemuhomwe nepahudyu yemakore ane mamiriyoni 1.9 iri pamusoro apa inofungidzirwa kuti ndeyaHomo habilis kana kuti Homo rudolfensis. Nepo masayendisiti ave achidzidza kwenguva refu zvimiro zvakasiyana-siyana zvedehenya uye zviso zvezvisikwa izvi, iye zvino vava kuongorora muviri wazvo. Maererano nokutsvakurudza kwakatungamirirwa nenyanzvi dzevanhu paYunivhesiti yeMissouri, rudzi rwokutanga urwu rwaHomo rwaiva nemapendekete maduku zvikuru uye mapfupa etsaya achienzaniswa norudzi rwedu, Homo sapien nerumwe rudzi rwomunhu rwakatsakatika Homo erectus. Makore 55 miriyoni apfuura - maprimiti okutanga akatanga kuvapo. Makore 15 miriyoni akapfuura - Hominidae shiri huru yakashanduka-shanduka kubva kumadzitateguru egibbon. Makore ane mamiriyoni masere akapfuura - gorira rokutanga rinoshanduka. Gare gare, madzinza evanhu neechimpanzi anosiyana. Makore 5,5 miriyoni akapfuura - Ardipithecus, munhu-wokutanga wekare anogoverana mavara nemachimpanzi nemakorira. Makore 4 miriyoni akapfuura - maAustralopithecine akaoneka. Dzakanga dzisina uropi hukuru kupfuura hweshimpanzi. Makore 2.7 miriyoni akapfuura - Paranthropus, aigara mumasango uye aiva nemiromo mikuru yokutsenga nayo. Makore 2,8 miriyoni akapfuura - Nhengo dzokutanga dzemhuri yeHomo dzakaoneka muAfrica sezvinoratidzwa neLD 350-1 yakawanikwa muEthiopia. Makore 2.3 miriyoni akapfuura - Homo habalis anofungidzirwa kuti akatanga kuoneka muAfrica. Makore 1,8 miriyoni akapfuura - Homo ergaster anotanga kuoneka muzvinyorwa zvezvisaririra. Makore 1,6 miriyoni akapfuura - Mhashu dzemaoko dzinova chinhu chokutanga chikuru chinovandudza zvinhu zvokugadzira zvinhu. Makore 800 000 akapfuura - Vanhu vapakuvamba vanodzora moto nokugadzira nzvimbo dzomoto. Ukuru hweuropi hunowedzera nokukurumidza. Makore 400 000 akapfuura - vanhu vekare vanotanga kuoneka uye kupararira muEurope neAsia. Makore 200 000 akapfuura - Homo sapiens -  <response>: Chigadziko chedehenya nechiuno chemunhu wekare zvakawanikwa muRift Valley, Kenya. Masayendisiti anodavira kuti anobva kuHomo rudolfensis kana kuti Homo habilis. Tsandanyama dzetsandanyama dzetsandanyama nedehenya dzakatetepa zvikuru kudarika idzo dzavanhu vemazuva ano. Izvi zvinoratidza kuti madzitateguru edu aiva nemakumbo nemuhudyu zvakatetepa pane zveHomo sapiens. Zvisaririra zvinoratidza kuti vanhu vokutanga vaiva nemiviri yakasiyana-siyana pamwe chete nemapfupa emusoro. 