When was bip39 introduced https://www.plurk.com/p/3hf2syltjx While it makes use of BIP32 technique you'll be able to continue to import BIP39 seeds into Electrum wallet. Also aside from BIp32 There exists BIP44 Model which some wallet use with the generation of seeds. BIP39 simplifies critical management by changing prolonged cryptographic information https://bookmarklogin.com/story20168578/bip39-word-list-the-single-best-strategy-to-use-for-bip39-word-list-txt-https-dzen-ru-bip39-phrase-com