Bip39 history https://www.symbaloo.com/mix/bookmarks-xfkm Regardless that it uses BIP32 technique you can nonetheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 Variation which some wallet use to the era of seeds. bip39-phrase.com is an informational blog committed to technologies and tools for safe copyright storage. https://pageoftoday.com/story6143283/bip39-react-bip39-compatible-wallet-options-https-linktr-ee-bip39