Who invented the astrolabe and when? Astrolabes are believed to have existed since 220 B.C.E. or even earlier. Their invention is credited to mathematician Apollonius of Perga who lived in the Hellenistic period
Risâla fî muqantarat khatt al-istiwa’ (Treatise on Almucantars on the Line of (Terrestrial) Equator), Princeton Universisty Library, MS Yehuda 373; and Risâla fi rub’ al-shakaziyya (Treatise on the Quadrant of the Shakkaziya (Astrolabe)), Cairo, The Egyptian National Library,...