Which occurrence (or occurrences) led to the creation of an impressive cultural center at ghazni?

A series of seventeen raids by the "Sword of Islam" led to the creation of an impressive cultural center at ghazni

The sword of islam is a tiltle given to a Turkish leader named Mahmud of Ghazni. After around 17 expiditions, he managed to conquer a lot of cities from both Asian and african continent and established Ghazni as one of the largest cultural center in the world at that time