Bip39 documentation https://www.bitsdujour.com/profiles/wWbptt Despite the fact that it works by using BIP32 system you can continue to import BIP39 seeds into Electrum wallet. Also apart from BIp32 There's BIP44 version which some wallet use for your era of seeds. Due to the fact including a passphrase towards your seed words https://bookmarkrange.com/story21713369/bip39-word-list-binary-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-dzen-ru-bip39-phrase-com