No the oldest block chain was invented by Acient Greeks, take Homer's Odyssey and Iliad. They are similar to blockchain as follows:
- Memorization of whole piece == Proof of work
- You need lots of people to agree upon the story == 51 % of nodes
- You can only append to the piece, because many others know and have memorized the piece so they will not agree to your version.
- Memorization of whole piece == Proof of work - You need lots of people to agree upon the story == 51 % of nodes - You can only append to the piece, because many others know and have memorized the piece so they will not agree to your version.