Bip39 standard https://postheaven.net/tiablexcen/recognizing-the-duty-of-bip39-in-copyright-budgets Although it takes advantage of BIP32 approach it is possible to still import BIP39 seeds into Electrum wallet. Also aside from BIp32 There may be BIP44 Model which some wallet use for that era of seeds. What’s interesting is that every different passphrase you use with the https://pr6bookmark.com/story20182009/bip39-root-key-bip39-npm-no-further-a-mystery-https-t-me-bip39-chat