Persian  spoken in  Afghanistan ,  Dari , was made the official language. The  Ghaznavid Empire  was ruled by his successors for 157 years. The expanding  Seljuk  Turkish empire absorbed most of the Ghaznavid west. The  Ghorids  captured Ghazni in 1150 A.D., and  Muhammad Ghori captured the last Ghaznavid stronghold at  Lahore