Wikipedia / 780s The 780s decade ran from January 1, 780, to December 31, 789.Significant peopleAl-Mahdi Abbasid caliphAl-Hadi Abbasid caliphHarun al-RashidAlcuinCharlemagneAl-KhayzuranZubaidah bint Ja'farAbd al-Rahman IReferencesSources