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Bitcoin calendar.

Halvings and network upgrades, the US releases that move markets, conferences, and the anniversaries of Bitcoin's history. Dates are in UTC.

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In 39 days

Satoshi's last forum post, 2010

MilestonesSaturday 12 December

16 years ago. Satoshi Nakamoto posted for the last time on the Bitcoin forum, announcing version 0.3.19 with new limits against denial-of-service attacks (attempts to overload nodes).

October 2009

October 2009, dates in UTC
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Events in October 2009

Monday 5 October6238 days ago

  • The first bitcoin exchange rate

    NewLibertyStandard published an exchange rate of $1.00 = 1,309.03 BTC, the first known price for bitcoin, which valued one bitcoin at well under a tenth of a cent.

    MilestonesSourceNewLibertyStandard, "2009 Exchange Rate" (archived 28 April 2010)

Saturday 31 October6212 days ago

  • The Bitcoin whitepaper, 2008

    1 year ago. Satoshi Nakamoto announced the paper "Bitcoin: A Peer-to-Peer Electronic Cash System" on the Cryptography Mailing List, describing electronic cash that works without a bank or other trusted third party.

    MilestonesSourceSatoshi Nakamoto Institute, "Bitcoin P2P e-cash paper" email (dated 31 Oct 2008, 18:10:00 UTC)What happened