Ar-Raqqah (Arabic: الرقة‎ ar-Raqqah), also called Rakka and Raqqa, is a city in Syria located on the north bank of the Euphrates River, about 160 kilometres (99 miles) east of Aleppo. It is located 40 kilometres (25 miles) east of the Tabqa Dam, Syria's largest dam. The city was the capital of the Abbasid Caliphate between 796 and 809 under the reign of Caliph Harun al-Rashid.