Abbaside

Abbaside or descendants of Abdullah Ibn Al Abbas, who holds the office of the caliphfrom 749 until 1258. The first Caliph Abbasid dynasty it was Abdul Abbas Al Saffahreigned in 749-754, the second caliph Mansur 754-775 years.

The first years of his reign so glorious, especially in the days of Caliph Harun Al Rashidyear caliph Ma'mun 786-809 and 813-833 years. Caliph-rival caliph Abbaside helpedweaken the power of dynasty, which eventually toppled in 1258 by Hulagu Khan(grandson of Chingiz Khan).