Harun al-Rashid (/hɑːˈruːnɑːlrɑːˈʃiːd/ Arabic: هَارُون الرَشِيد‎, Hārūn Ar-Rašīd; 17 March 763 or February 766 — 24 March 809) was the fifth Abbasid Caliph. His birth date is debated, with various sources giving dates from 763 to 766. His surname translates to "the Just", "the Upright", or "the Rightly-Guided"; fully translated, his name means "Aaron the Just". Ar-Rashid ruled from 786 to 809, during the peak of the Islamic Golden Age.