Silver coin pendant Dirhem of the Abbasies. Mahdi Muhammad Dirham. Baghdad 158-169 Hegira (775-786 AD) (Abbasid) In al-Andalus, Muslims, like Christians, used the Visigothic currency and the Umayyad and Abbasid dinars and dirhems arrived in the Peninsula through trade. The actual Hispanic coinage began with Abderramán I, who established the silver standard that enjoyed stability until the beginning of the 11th century, but it did not become widespread until Abderramán II, which was due to the systematic issuance of silver coins. (Abderraman = slave of the Clement) The silver monetary standard was adopted because al-Andalus was affected in the 8th and part of the 9th century by the shortage of gold, and copper and silver coins were only minted until Abderraman III intervened in North Africa and came into contact with the Sudanese gold caravan route, minting the first gold coins in 929.