I have recently come across an interesting program that datamines Minecraft worlds and condenses all written books and signs into text files. We decided it would be interesting if we used them to mine the old worlds to see what ancient secrets we could dig up. Attached is a link to the subreddit (with download links for the jar files) and the text files mined so far.

Subreddit
https://www.reddit.com/r/MinecraftDataMining

Second World
https://cdn.discordapp.com/attachments/412674306766536714/412771590997016587/Second_World_Books.txt
https://cdn.discordapp.com/attachments/412674306766536714/412774207777406976/Second_World_Signs.txt

Third World
https://cdn.discordapp.com/attachments/390889585829216266/412786570941431808/Third_World_Books.txt
https://cdn.discordapp.com/attachments/390889585829216266/412789095782154240/Third_World_Signs.txt