820 ⟶ Al-Khwarizmi Completes His Treatise on Algebra
Muḥammad ibn Mūsā al-Khwārizmī writes his treatise on Algebr...
Year
-383
820
830
1000
1021
🗓️ Babylonian Calendar Adopts 19-Year Lunar Cycle
The 19 year lunar cycle is introduced into the Babylonian calendar.⟶
AstronomyCalendarsAncient MesopotamiaTimekeepingMathematicsReligion
Iraq➗ Al-Khwarizmi Completes His Treatise on Algebra
Muḥammad ibn Mūsā al-Khwārizmī writes his treatise on Algebra The Compendious Book on Calculation by Completion and Balancing.⟶
AlgebraMathematicsIslamic Golden AgeScientific RevolutionAlgorithms
Iraq📚 Establishment of the House of Wisdom and Al-Khwarizmi's Algebra
The House of Wisdom, a library and translation institute established in Baghdad by al-Ma'mun, Abbasid caliph, to transfer the knowledge of Greeks, Persians, Indians, etc. to the Muslim world. The Compendious Book on Calculation by Completion and Balancing, a book of algebra, is also written there by Al-Khwarizmi.⟶
Islamic Golden AgeAbbasid CaliphateMathematicsAlgebra
Iraq
🔭 Ibn al-Haytham Completes *Book of Optics*
– Ibn al-Haytham (Alhacen) of Basra, Iraq writes his influential Book of Optics from 1011 to 1021 (while he was under house arrest in Egypt),⟶
OpticsPhysicsMathematicsScientific MethodIbn al-HaythamIslamIslamic Golden Age
Iraq
Egypt