Satoshi Nakamoto is the pseudonymous individual or group who created Bitcoin, authoring the 2008 whitepaper and developing the initial Bitcoin software. Despite numerous attempts, Satoshi's true identity remains unknown.

*Key Facts:*

1. Published Bitcoin whitepaper on October 31, 2008.

2. Developed and maintained Bitcoin's initial software until December 2010.

3. Mined the first block (Genesis Block) on January 3, 2009.

4. Communicated with early Bitcoin developers through forums and emails.

5. Disappeared from the public eye in December 2010.

*Possible Identities:*

Several individuals have been speculated to be Satoshi, but none confirmed:

1. Nick Szabo

2. Hal Finney

3. Dorian Nakamoto

4. Craig Wright

*History of Bitcoin Poster:*

Here's a possible poster design:

[Image description: A historical timeline poster with key events and images]

*2008*

- Oct 31: Bitcoin whitepaper published

*2009*

- Jan 3: Genesis Block mined

- Jan 9: Bitcoin v0.1 released

*2010*

- May 22: First real-world transaction (2 pizzas for 10,000 BTC)

- Jul 18: Bitcoin v0.3 released

*2011-2017*

- Bitcoin price surges and crashes

- Blockchain technology develops

*2018-Present*

- Institutional investment increases

- Regulatory clarity improves

*Key Figures:*

- Satoshi Nakamoto (Creator)

- Hal Finney (Early developer)

- Gavin Andresen (Former lead developer)

- Vitalik Buterin (Ethereum co-founder)

*Important Events:*

- Mt. Gox hack (2014)

- Bitcoin Cash hard fork (2017)

- COVID-19 pandemic (2020)

*Inspirational Quote:*

"The nature of Bitcoin is such that once version 0.1 was released, the core design was set in stone for the rest of its lifetime." - Satoshi Nakamoto