Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nhamba dzechiEgipita yekare dzaiva nechigadziko che10. Vaishandisa hieroglyphs nokuda kwamadhigirii uye vakanga vasina nzvimbo. Pakazosvika 1770 BC, vaEgipita vaiva nechiratidzo chezero mumagwaro okuverenga. Chiratidzo nfr, chinoreva kuti chakanaka, chaishandiswawo kuratidza mwero wepasi pamifananidzo yemakuva nemapiramidhi uye madaro aiyerwa zvichienzaniswa nemutsetse wepasi seiri pamusoro kana pasi pemutsetse uyu. Pakazosvika pakati pechiuru chemakore chechipiri BC, masvomhu eBhabhironi aiva nehurongwa hwehuwandu hwehuwandu hwehuwandu hwehuwandu. Kushaikwa kwechinhu chinokosha (kana kuti zero) kwakaratidzirwa nenzvimbo pakati penhamba dze sexagesimal. Pakazosvika 300 BC, chiratidzo chechiratidzo (mabhuruku maviri akavezwa) chakagamuchirwa sechigadziri munzvimbo mune imwecheteyo yeBhabhironi. Pane rimwe dombo rakafukunurwa paKishi (rakabva munenge muna 700 B.C.E.), munyori Bêl-bân-aplu akanyora zviverengero zvake zvezero namabhuroko matatu, panzvimbo pezviverengero zviviri zvakatetepa. Uyewo harina kushandiswa pakupera kwenhamba. Nokudaro nhamba dzakafanana na 2 na 120 (2×60), 3 na 180 (3×60), 4 na 240 (4×60), dzakatarira zvakafanana nemhaka yokuti nhamba huru dzakanga dzisina nzvimbo yokupedzisira yechikamu chechikamu chechikamu chechikamu chechikamu chechikamu chechikamu. Mugariro bedzi waigona kuvasiyanisa.  Mubvunzo: Nhamba huru idzi dzinoshaya chii?
nzvimbo yokupedzisira yechitanhatu