Karmathians, originally a secret society of the Ismaîlis, developed into a religious and communistic sect, and waged a great peasants' war under successive leaders between A.D. 900 and 950; Mecca was captured 930; the movement of the Karmathians did much to overthrow the power of the Khalifate.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Karman * Karr, Jean Baptiste Alphonse