Dinar - al-Ma'mun

Al-Ma'mun's reign produced some of the most intellectually charged coinage in Islamic history, issued from a caliphate actively funding the translation of Greek scientific texts into Arabic through the Bayt al-Hikma in Baghdad. His dinars are notable for carrying explicit theological statements reflecting his controversial Mu'tazilite sympathies — the doctrine that the Quran was created rather than eternal — a position he attempted to enforce through the Mihna inquisition beginning in 833, the final year of this issue's range.