When was bip39 introduced https://list.ly/abregeouoh Though it uses BIP32 strategy you may nevertheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 There exists BIP44 Variation which some wallet use with the technology of seeds. Due to the fact adding a passphrase on your seed words results in a https://mnobookmarks.com/story20120615/bip39-format-example-the-5-second-trick-for-bip39-mnemonic-code-converter-tool-https-t-me-bip39-chat