Bitcoin Calendar: Key Historical Events
January
- January 3, 2009: Genesis Block Day1 - The birth of Bitcoin.
- January 11, 2009: First Tweet About Bitcoin2 - Hal Finney tweets "Running bitcoin."
- January 12, 2009: First Bitcoin Transaction3 - Satoshi sent 10 BTC to Hal Finney.
- January 14, 2016: Lightning Whitepaper Released4 - Proposal for off-chain transactions.
February
- February 9, 2011: 1 Bitcoin = 1 USD5 - Bitcoin achieves parity with the US dollar.
- February 19, 2021: The Trillion Dollar Day6 - Market cap surpasses $1 trillion.
- February 24, 2014: MT.GOX Bankruptcy7 - 744,000 BTC stolen.
March
- March 9: Cypherpunk Day8 - Honoring the movement that laid the groundwork for Bitcoin.
- March 12, 2013: 24 Block Rollback9 - Blockchain split resolved by community effort.
- March 28, 2013: The Billion Dollar Day10 - Market cap surpasses $1 billion.
April
- April 5: Satoshi's Birthday11 - Celebrating the creator of Bitcoin.
- April 23: Bitcoin in Good Hands12 - Satoshi's last public message.
May
- May 10: Lightning Day13 - Celebrating the Lightning Network's advancements.
- May 22, 2010: Bitcoin Pizza Day14 - First real-world transaction.
July
- July 29, 2014: First Hardware Wallet Prototype15 - Introduction of Trezor.
August
- August 1, 1997: Hashcash Announced16 - Proof-of-work system introduced.
September
- September 7, 2021: El Salvador Adopts Bitcoin17 - First country to make Bitcoin legal tender.
October
- October 31, 2008: Bitcoin Whitepaper Released18 - Satoshi outlines Bitcoin's mechanics.
November
- November 1, 2010: Bitcoin Logo Day19 - The famous logo shared on Bitcointalk.
- November 14, 2021: Taproot Activation20 - Major upgrade implemented.
December
- December 7, 2010: First Mobile Transaction21 - Showcasing Bitcoin's usability.
- December 12, 2010: Satoshi's Final Message22 - Last known communication.
- December 18: HODL Day23 - Celebrating the misspelled "hold."
- December 19, 2021: Stack Sats Day[^24] - Launch of Stacker News.
Footnotes
**Feel free to contribute.**Corrections are greatly appreciated.
Footnotes
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The Genesis Block is the first block in the Bitcoin blockchain, mined by Satoshi Nakamoto, containing a hidden message referencing the financial crisis. ↩
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Hal Finney's tweet marked the first known mention of Bitcoin on Twitter. ↩
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This transaction demonstrated Bitcoin's capability as a peer-to-peer monetary system. ↩
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The Lightning Network whitepaper proposed solutions to Bitcoin's scalability issues. ↩
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Bitcoin achieving parity with the US dollar was a significant milestone. ↩
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This day marked a recognition of Bitcoin as a major financial asset. ↩
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MT.GOX's bankruptcy highlighted the importance of security in cryptocurrency exchanges. ↩
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Cypherpunks advocated for privacy-enhancing technologies, influencing Bitcoin's creation. ↩
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A community effort resolved a blockchain split caused by a bug. ↩
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The market cap milestone reflected Bitcoin's growing influence. ↩
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Celebrating Satoshi Nakamoto's birthday. ↩
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Satoshi's message reassured the community before stepping back from public involvement. ↩
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This day celebrates advancements in the Lightning Network technology. ↩
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Laszlo Hanyecz made the first real-world Bitcoin purchase. ↩
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Hashcash inspired Bitcoin's mining algorithm. ↩
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El Salvador embracing Bitcoin was a groundbreaking event. ↩
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The Bitcoin whitepaper outlines the fairest monetary system. ↩
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The Bitcoin logo became an iconic symbol of freedom. ↩
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Taproot improved Bitcoin's privacy and scripting capabilities. ↩
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Showcased Bitcoin's potential for mobile transactions. ↩
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Marked the end of Satoshi's public communications. ↩
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HODL Day commemorates a famous misspelling, means "buy the truth and sell it not". ↩
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Stack Sats Day celebrates the launch of Stacker News, a platform for Bitcoin enthusiasts. ↩