The tech behind NFTs, or non-fungible tokens, hasn’t changed all that much since the development of the ERC-721 standard – the coding framework on which most popular crypto collectibles are built.
That’s because until 2021, NFTs were mostly a niche curiosity for crypto enthusiasts. Even with the rise of CryptoKitties in 2017, NFTs didn’t immediately conjure up any cultural or aesthetic reference points beyond the broader crypto ecosystem – despite becoming a media hang-up.
https://www.coindesk.com/tech/2021/11/29/planet-of-the-bored-apes/