Crypto 101: The History of Ethereum
The Beacon Chain went live on December 1, 2020, and “The Merge” was completed on September 15, 2022, transitioning Ethereum from proof of work to proof of stake.
The Ethereum white paper was written in late 2013, and a 42-day public sale of Ether began in July 2014.
The most costly thing in this space has never been transaction fees, but the price of not understanding the rules.
$ETH has been Ethereum’s native currency for paying gas since the mainnet launched in 2015.

I’m just sharing this; it’s not investment advice.