tinued to follow up to the eleventh century, when the Getic Empire on the Oxus was overwhelmed in the tide of Islamism, many fugitives then fleeing to join their kind in the Indus valley, where they formed a powerful community, as is shown in the interesting records of the first invasion of India by Mahmud of Ghuzni, in the eleventh century, which led to the occupation of Lahore, and the establishment of the Mahomedan Empire in India after a struggle on the frontier lasting for two centuries.
The Jats now emerged from the nebulous region of their history, and henceforward they were never lost to sight. At every step taken by the Mahomedan invaders from the north they encountered the Jats, who showed themselves a power to be reckoned with. They so vigorously opposed Mahmud's army in the passage of the Indus, and harassed his line of march, that he had in person to lead his troops against them in 1027. The famous Tamerlane in the fourteenth century, at the
