Relationship
Decentralized Nations discovers key elements of human civilization (humanities, technology, literary works, architecture) in the form of NFT. Such civilization belongs to the City where it was born, and each City has its own Nation. The more civilization develops, the more Cities develop, the more Nations develop.
NFT revenue sharing system
Every time a new NFT of City is sold, the NFT owners of the Nation to which it belongs get 15 percent of their NFT sales. Whenever a new NFT of civilization is sold, NFT owners of the City and Nation where it originated share 15 percent of their NFT sales.