Early history
- Main page: History
Contents
1998
November
2002
August
December
- 09 – An unidentified cypherpunk describes a “virtual coin” on a UK finance newsgroup.
2007
Month unknown
- Date unknown – Satoshi Nakamoto begins developing Bitcoin.
2008
August
- 18 – The bitcoin.org domain name is registered.
- 22 – Satoshi Nakamoto contacts Wei Dai after a referral from Adam Back.
October
- 31 – The Bitcoin white paper is published by Satoshi.
November
- 09 – The Bitcoin project is registered on SourceForge.
2009
2009 was the year of Bitcoin‘s launch.
January
- 03 – The genesis block is established by Satoshi Nakamoto.
- 09 – Bitcoin v0.1 is released on the cryptography mailing list and mining begins.
- 11 – Block 78 is the first to be mined by a known individual other than Satoshi.
- 12 – The first transaction occurs between Satoshi and Hal Finney.
October
- 05 – New Liberty Standard publishes the earliest exchange rates based on cost of production.
December
- 12 – Satoshi releases Bitcoin v0.2.
- 30 – The difficulty adjusts for the first time, rising from 1 to 1.18 on block 32256.
2012
Halving day 2012 (November 28, 2012) was the day of the first subsidy halving, which occurred when block 210000 was solved. Until , the block reward would be 25 BTC instead of the original 50 BTC.
At the moment before the halving, 10,500,000 BTC had been mined, 50% of the target cap.
The block was solved by a Radeon HD 5800 after mining for less than a week. This GPU would later be sold to Chaang Noi at a significant markup on August 26, 2013. Several images of the card were posted to Bitmit, but no copies are currently known to exist.