1) Arab dynasty 
The Yufirids (بنو يعفر, Banū Yuʿfir) were a local Islamic dynasty that held power in the highland of Yemen from 847 to 997. The name of the family is often incorrectly rendered as `Yafurids`. They nominally acknowledged the suzerainty of the Abbasid caliphs. Their centres were San`a and Shibam. ==Rise of the dynasty== At the time wh......