The first "free from government" city, Liberstad in the world issues its own native currency, which will be the only medium of exchange in the city.
source https://www.google.com/url?rct=j&sa=t&url=https://www.chepicap.com/en/news/7478/new-government-free-city-in-norway-will-have-its-own-cryptocurrency.html&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNH9BmF1ji49n1h-HPtRQExo2HKPPg
