-383 ⟶ Babylonian Calendar Adopts 19-Year Lunar Cycle
The 19 year lunar cycle is introduced into the Babylonian ca...
Year
-763
-432
-383
820
830
☀️ Solar Eclipse Fixes Ancient Near Eastern Chronology
June 15, 763 BC: A solar eclipse on this date is used to fix the chronology of the Ancient Near East.⟶
AstronomyChronologyEclipse
Iraq🗓️ Athens Adopts Metonic Cycle for Calendar Synchronization
Athens adopts a 19-year cycle of synchronizing solar and lunar calendars.⟶
Ancient greeceCalendarsAstronomyTimekeeping
Greece🗓️ 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