Cryptocurrency bonanza in 2021, all thanks to these heavyweight events

7, Bitcoin Becomes Legal Tender in El Salvador

El Salvador voted by an "absolute majority" in June to make bitcoin legal tender in the country, meaning it became the first country in the world to give digital currency legal status.

The impact of El Salvador's decision is still being felt, with the International Monetary Fund and other institutions concerned about the potential impact of bitcoin's volatility on consumer protection and financial stability, among other things. For his part, the country's president, Nayib Bukele, has been tweeting about buying bitcoin as its price falls. El Salvador's move has accelerated the discussion of cryptocurrencies as a national legal tender, and cryptocurrency advocates have been touting the possibility. Still, it's a new and challenging path; on the other hand, central banks in many countries are already looking into issuing digital currencies.

8、Major upgrade

Ether's major upgrade in early August aimed to improve the performance of the Ether network, reduce the high GAS fees in the past, reduce the congestion on the chain and improve the user experience, arguably the most important part of the entire ETH 2.0 upgrade; at the same time, the upgrade also reduced the rate of Ether supply growth and boosted the price of Ether. In addition, Bitcoin also underwent an upgrade in November.