1: On October 31, 2008, a person (or team) claiming to be 'Satoshi Nakamoto' sent an email to a cryptography mailing list, titled:
'Bitcoin: A Peer-to-Peer Electronic Cash System'
The email included a white paper describing a completely new electronic currency system that does not rely on banks or centralized institutions, but operates through a peer-to-peer network and cryptographic technology. This was the declaration of the birth of Bitcoin.
2: 2009: The Bitcoin Network Goes Live
On January 3, 2009, Satoshi Nakamoto released the first software client for Bitcoin and mined the first block (also known as the 'genesis block').
3: Early Development: Low Profile and Focused
During 2009–2010, Satoshi Nakamoto was active in the Bitcoin development community. He often posted on forums, fixed bugs, and collaborated with other early developers, such as:
Hal Finney: The first person to receive Bitcoin;
Gavin Andresen: Who later became the 'successor' of the Bitcoin project.
4: Gradual Withdrawal
In December 2010, Satoshi Nakamoto released the last software update. In April 2011, he sent an email to one of the Bitcoin developers:
'I’ve moved on to other things. It’s in good hands with Gavin and everyone.' After that, he completely disappeared from the internet. Since then, no one has heard from him again. No one could verify his identity.
5: The Mystery of Wealth
According to on-chain data, Satoshi Nakamoto mined about 1 million Bitcoins (worth billions of dollars), but these Bitcoins have never been moved. This further adds to his mystery.