Just my opinion, but I would stay away from pre Satoshi history. No-coiners won't find it as fascinating as we do. Likewise, I wouldn't get into too much about the blockchain beyond the basics. I would emphasize value(scarcity, security, inflation protection) how to get it, and wallets. Don't go too crazy about hardware wallets and multisig or anything like that. I guess I would just recommend keeping it as simple as possible