Similar was the case with males, especially of tender and young age. Firoz Tughlaq acquired them by all kinds of methods and means, so that he collected 180,000 of them. Shams Siraj Afif, the contemporary historian, writes that under Firoz, "slaves became too numerous” and adds that "the institution took root in every centre of the land”. So that even after the Sultanate broke up into a number of kingdoms, slave-hunting continued in every "(Muslim) centre of the land.”.