Bip39 protocol https://penzu.com/p/2ea6922b70254307 Although it takes advantage of BIP32 system you can nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 version which some wallet use for your era of seeds. Some wallets can import many seed phrases and several only have 1 standard. Be aware https://bookmarklayer.com/story19904257/iancoleman-bip39-github-bip39-compatible-wallet-options-https-x-com-tundra838554