-
997 BCE
Abu Wafa Muhammad al-Buzanji
he took part in an experiment to find out the difference in local time between his location and that of part of Uzbekistian -
925 BCE
Al-Razi
He invent soap bars and sublimation -
900 BCE
Abu Abdullah al- Battani
al-Battānī's contribution to astronomy was the determination of the solar year as being 365 days, 5 hours, 46 minutes and 24 seconds, which is only 2 minutes and 22 seconds off. -
873 BCE
Al-Kindi
He was the first to refute the study of traditional alchemy and the theory of the transmutation of metals into more precious metals -
830 BCE
Muhammad bin Musa al-Khwarizmi
Muhammad and few others were were first to map the world. -
805 BCE
Al - Sadiq
developed a particle theory -
1015
Al-Hassan ibn al-Haytham
Al-Hassan ibn al-Haytham invented the Book of Optics -
1414
Al-Kashi
invented the Plate of Conjunctions, an analog computing instrument used to determine the time of day at which planetary conjunctions