What Was Burnt in Those Fires?

We know that turks destroyed all of these universities and burnt all the libraries. The university library at nalanda is known to have burned for months. So what? What was burned there? Was it not documentation that was burned? Right? We hare left with very little to day. Even to day, in various temples and all there are all these palm leafed nd palm leaf manuscripts and other manuscript that are still gathering dust they have not been preserved. They should have been digitized and preserved through some means. There are millions of manuscripts that still exist, which is all ancient documentation. So these claims are worthless. These caim claims are all false. They are all lies