Harun al-Rashid from the Abbasid dynasty is the probably best known Caliph (786-809 AD) in the western world. His name stood for the Golden Age of Islam, for he was the ruler mentioned in the folk tales known as the "Tales of a Thousand and One Nights." When al-Rashid ascended to power, his realm stretched from the Atlas Mountains in the west through Egypt and Syria to Afghanistan in the east. The centre of the Caliphate was Baghdad, a city that had been founded only a few decades earlier. This dinar was struck in Fustat, the first Arab settlement in Egypt, established in the 640s. Until the foundation of Cairo in 969, Fustat was the administrative center of the country. Today it is part of Old Cairo.