My intent was humorous, but not to shame; I didn't mean it to come out that way. > How much literature has disappeared from history because certain languages o

My intent was humorous, but not to shame; I didn't mean it to come out that way. > How much literature has disappeared from history because certain languages or vernaculars fell out of use? The answer is not very much, comparatively. Most of the known losses of old works has been due to destruction, not communal loss of ability to decipher. Here's a summary of objects with unknown scripts: https://omniglot.com/writing/undeciphered.htm https://omniglot.com/writing/undeciphered.htm