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Counting since Saturday, January 3, 2009.
On January 3, 2009, the pseudonymous Satoshi Nakamoto mined Bitcoin's genesis block — the first block of the blockchain. Embedded in it: a headline from The Times that day, 'Chancellor on brink of second bailout for banks.'
Fast facts
- The genesis block carried a reward of 50 BTC, which has never been spent.
- Satoshi Nakamoto's true identity has never been confirmed.
- There will only ever be 21 million bitcoins — about 19.6 million have been mined so far.
- The first known commercial Bitcoin transaction was for two pizzas, in May 2010.