Jan 3
- 2009: The first Bitcoin block is mined, Block 0. This is also known as the "genesis block" and contains the text: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks." Investopedia.
Jan 8
- 2009: The first version of the Bitcoin software is announced on The Cryptography Mailing list. Investopedia.
Jan 9
- 2009: Block 1 is mined, and Bitcoin mining commences in earnest. Investopedia.
Jan 12
- 2009: The first Bitcoin transaction took place when Satoshi Nakamoto sent 10 BTC to Hal Finney. Blockchain.com.
Feb 24
- 2014: Two-Bit Idiot breaks the news of Mt. Gox' impending collapse, after 744,408 BTC of their funds have gone missing. Two-Bit Idiot's Tumblr on Wayback Machine.
Feb 28
- 2014: MT. Gox files for bankruptcy. Reuters.
Mar 6
- 2014: After a Newsweek article suggests Dorian Nakamoto is the creator of Bitcoin, journalists camp outside his house and then chase him down the highway when one of them takes him out for sushi lunch. The Verge.
May 11
- 2020: Third Bitcoin halving. Block reward drops from 12.5 BTC to 6.25 BTC. Bitcoin Wiki.
May 22
- 2010: Florida programmer and BitcoinTalk user Laszlo Hanyecz offers to pay 10,000 bitcoins for 2 pizzas. Someone in the U.K. takes him up on it, orders two pizzas from Papa John's in Hanyecz’s area, pays $25 for them, and gets the 10,000 bitcoins in exchange. This transaction marks the first real world transaction/purchase used with Bitcoin. It is now known as Bitcoin Pizza Day. Bitcointalk.org.
Jul 9
- 2016: Second Bitcoin halving. Block reward drops from 25 BTC to 12.5 BTC. Bitconi Wiki.
Aug 18
- 2008: The domain name bitcoin.org is registered. Investopedia.
Sept 7
- 2021: El Salvador becomes the first country to make bitcoin legal tender. Reuters.
Oct 5
- 2009: Bitcoin user NewLibertyStandard calculates the first price of BTC. New Liberty Standard on Wayback Machine via RIZZO.
Oct 6
- 2014: The most notorious BTC bear abruptly sells 30K BTC. Bulls answer the call, holding $300 and avoiding the breach. Franklyn Richards on YouTube via RIZZO.
Oct 31
- 2008: Someone using the name Satoshi Nakamoto makes an announcement on The Cryptography Mailing list at metzdowd.com: "I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party. The paper is available at http://www.bitcoin.org/bitcoin.pdf." Investopedia.
Nov 28
- 2012: First Bitcoin halving. Block reward drops from 50 BTC to 25 BTC. Bitconi Wiki.
Dec 13
- 2010: Last activity of Satoshi Nakamoto is seen on the bitcointalk.org forum. Bitcointalk.org.
Dec 18
- 2013: The term hodling is coined. #hodl Bitcointalk.org.
- 2017: Block #500,000 is mined. Blochchain.com.
Dec 19