Reply #3: Yes, it was.

[Igel]

Still, your examples are all of cases when the only extant texts of documents were destroyed. With many hundreds of millions of copies of the Qur'aan around, it's survival for a while is assured.

I'm more concerned with pulp and popular journals from the 1800s, things that are routinely removed from library because they take up space and aren't used; they're not always scanned.

Your examples, of course, could be multiplied. We have little idea of what the Berber's religion and folklore was prior to Islam. It was suppressed, just as various Semitic languages died under the onslaught of Arabic motivated by the spread of Islam. The Han have wiped out scores of ethnicities in the last thousand years. The Khoe-San are in sad shape, their traditions and culture a wreck of what it had been before the Bantu moved in. My interpretation instructor's "day job" was as a linguist in Mexico; her job was to go around and chronicle the destruction of local languages and folklore, documenting the languages and their then-current state as Spanish and the centralized education system overwhelmed them.

Lots of examples, not just those committed or aided by Europeans.