I came across this detail again while reviewing, so I thought I’d share it.
The Cardano mainnet launched in September 2017. Its name comes from the Italian mathematician Gerolamo Cardano.
Cardano’s development roadmap is divided into several phases, named after historical figures such as Byron and Shelley.
Holders of $ADA can delegate their coins to stake pools and earn staking rewards.
Where did you first learn about this?

The information is from public sources, so be sure to verify it yourself.