Bip39 history https://felixkkjt585.theglensecret.com/bip39-word-checklist-generator-crafting-your-own-special-seed-phrase It is extremely important that the mnemonic sentences are generated from randomly selected numbers! These numbers might be produced in a number of alternative ways, which might be described in other posts listed here, like "What's an RNG" and Seed Phrase Generation... https://www.plurk.com/p/3hf2syltjx