Re: Ghurids were Pashtuns
Lingua franca of Afghanistan has always been dari/farsi. Also note that court language of khilji, lodhi, suri and durrani dyanastis was also persian.
@khoji
You are quoting iranica and editable wiki but why the confusion when famous historian of that time ferishta mentioned ghurids as Suri afghans.
'In the following year AH 401 (AD 1010), Mahmood led his army towards Ghoor . The native prince of the country, Mahomed, of the Afghan tribe of Soor (the same race which gave birth to the dynasty that eventually succeeded in subverting the family of Sebüktigin), occupied an entrinched camp with 10,000 men. Mahmood was repulsed in repeated assaults which he made from morning till noon. Finding that the troops of Ghoor defended their entrenchments with such obstinacy, he caused his army to retreat in apparent confusion, in order to allure the enemy out of his fortified position. The Ghoorians, deceived by the stratagem, pursued the army of Ghizny; when the king, facing about, attacked and defeated them with great slaughter. Mahommed Soor, being made prisoner was brought to the king, but having taken poison, which he always kept under his ring, he died in a few hours; his country was annexed to the dominions of Ghizny. The author of the Towareekh Yumny affirms, that neither the sovereigns of Ghoor nor its inhabitants were Mahomedans till after this victory; whilst the author of the Tubkat-Nasiry, and Fukhr-ood-Deen Moobarik Shah Lody, the latter of whom wrote a history of the Kings of Ghoor in verse, both affirm, that they were converted many years before, even so early as the time of Ally
(Ferishta-Translation John Briggs, p. 28 vol 1)