"The first of these bloody sultans, Kutb-d Din Aibak, was a normal specimen of his kind—fanatical, ferocious and merciless. His gifts, as the Mohammedan historian tells us, “were bestowed by hundreds of thousands, and his slaughters likewise were by hundreds of thousands.” In one victory of this warrior (who had been purchased as a slave), “fifty thousand men came under the collar of slavery, and the plain became black as pitch with Hindus.”"
January 1, 1970
https://en.wikiquote.org/wiki/Qutb_al-Din_Aibak