Isazi sezibalo umuntu osebenzisa ulwazi olunzulu lwezibalo emsebenzini wabo, imvamisa ukuxazulula izinkinga zezibalo. Ochwepheshe bezibalo bakhathazekile ngezinombolo, idatha, ubungako, isakhiwo, isikhala, amamodeli, noshintsho. Imvelaphi Esinye sezazi zezibalo zokuqala kwakunguThales waseMileto (c. 624 – c. 546 BC); umenyezelwe njengesazi sokuqala sezibalo kanye nomuntu wokuqala owaziwayo okutholwe kuye ukutholakala kwezibalo. [1] Ubizwa ngokusetshenziswa kokuqala kokucabanga okususwayo okusetshenziswe kuJiyomethri, ngokuthola izilinganiso ezine kuThales 'Theorem. Inani lezazi zezibalo ezaziwayo lakhula ngenkathi uPythagoras waseSamos (c. 582 – c. 507 BC) esungula iPythagorean School, imfundiso yayo ukuthi izibalo zazilawula indawo yonke futhi isiqubulo sayo sasithi "All is number". igama elithi "mathematics", futhi okuqala ngalo isifundo sezibalo ngenxa yalo. Owesifazane wokuqala wezibalo owaqoshwa ngumlando kwakunguHypatia wase-Alexandria (AD 350 - 415). Ulandele ubaba wakhe njengoMtapo Wezincwadi eGreat Library futhi wabhala imisebenzi eminingi ngezibalo ezisetshenzisiwe. Ngenxa yengxabano yezepolitiki, umphakathi wamaKrestu e-Alexandria wamjezisa, ecabanga ukuthi uyabandakanyeka, ngokumhlubula futhi wakhuhla isikhumba sakhe ngamagobolondo (abanye bathi ngamathayili okufulela).