Died on 892
ʾAḥmad Ibn Yaḥyā al-Balādhurī Arabic was a 9th-century Persian historian. One of the eminent middle-eastern historians of his age, he spent most of his life in Baghdad and enjoyed great influence at the court of the caliph al-Mutawakkil. He traveled in Syria and Iraq, compiling information for...
Born on 950 Died on 1013
Muslim theologian. He introduced the conceptions of atoms and vacuum into the Kalam. He extended atomism to time and motion, conceiving them as essentially discontinuous.
Born on 853 Died on 929
Astronomer and mathematician, born in Harran (now in Turkey) around 853 CE. He died in 929 at Qasr al-Jiss, near Samarra in Iraq. Among his achievements: the determination of the solar year as being 365 days, 5 hours, 46 minutes and 24 seconds; the production of a number of trigonometrical relations...