El Salvador became the first country to adopt Bitcoin as an official currency in September 2021.
In April 2022, The Central African Republic (CAR) has approved Bitcoin as a legal tender - just the second country to do so.
This question will resolve to whichever country adopts Bitcoin as its legal tender, via a consensus of credible media reporting.
Nov 15, 4:45pm: What country will be next to make Bitcoin its legal tender? → Next country to adopt Bitcoin as a legal tender:
1,000
3.005% of Bhutan's GDP spent on bitcoin mining investments? https://crypto.news/bhutan-spends-5-of-its-gdp-on-mining-bitcoin/
I didn't check the sources but in any case Bitcoin mining investments in Bhutan have been massive since 2019 relatively to the size of the local economy.
The gov even announced they would use BTC profits to increase the wage of public servants: https://thebhutanese.bt/what-surging-bitcoin-prices-mean-for-bhutan/
Bhutan is also the country where bitcoin is the most popular on Google (source):
@kolotom99 : is it Bitcoin (BTC)? Or any coin that claims to be Bitcoin (BCH, etc.)?
St Kitts mentioned BCH: https://www.coindesk.com/policy/2022/11/14/bitcoin-cash-could-be-legal-tender-in-st-kitts-by-march-prime-minister-says/
Fiji on the other hand could adopt BTC: https://bitcoinmagazine.com/legal/fiji-prime-minister-bitcoin-legal-tender