Yes, El Salvador was the first country in the world to legally recognize Bitcoin.
This information is not too accurate.
Bitcoin is legal in many nations, not only in El Salvador, it's only a first nation where Bitcoin "was" legal tender in 2021 but in early 2025, that nation changed their national policy and Bitcoin has been no longer legal tender there.
https://gfmag.com/economics-policy-regulation/el-salvador-drops-bitcoin-legal-tender/Details
As part of a $1.4 billion loan agreed with the International Monetary Fund in December, the government’s involvement with the digital Chivo wallet will be “gradually unwound.” At the end of January, on a vote of 55-2, El Salvador’s Legislative Assembly passed modifications to the Bitcoin law, eliminating the word “currency” but keeping it legal tender. The changes will take effect May 1, 90 days after the legislation appeared in the official newspaper.
“Bitcoin no longer has the strength of legal tender,” economist Rafael Lemus told AFP.
Users are now free to accept Bitcoin or not, but it cannot be used to pay taxes or state bills.
Legality of Bitcoin globally
https://newhedge.io/terminal/bitcoin/legality-map