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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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BTC Balkans

ConferencesSunday 1 November

A two-day, community-run Bitcoin conference for the Balkans, with keynotes, panels and workshops.

July 2021

July 2021, dates in UTC
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Events in July 2021

Saturday 3 July1947 days ago

  • Record fall in mining difficulty

    Bitcoin's mining difficulty fell 27.9% at block 689,472, the largest downward adjustment in its history, after China's crackdown knocked about half of the network's mining power offline.

    Network · 06:34 UTCSee block 689,472SourceHashrate Index, "Bitcoin Difficulty Adjustment Experiences 28% Drop, Largest Ever As Miners Exit China"

Friday 9 July1941 days ago

  • The second halving, 2016

    5 years ago. At block 420,000 the reward for mining a block fell from 25 to 12.5 bitcoin, the second halving.

    NetworkSee block 420,000SourceBitcoin Core source, nSubsidyHalvingInterval = 210000