Bitcoin calendar.
Halvings and network upgrades, the US releases that move markets, conferences, and the anniversaries of Bitcoin's history. Dates are in UTC.
In 41 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).
May 2021
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
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| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22Pizza Day, 2010 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 |
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Events in May 2021
Saturday 22 May1989 days ago
Bitcoin Pizza Day, 2010
11 years ago. Laszlo Hanyecz paid 10,000 BTC for two pizzas, one of the first known purchases made with bitcoin.
MilestonesSee block 57,043See the paymentSourceLaszlo Hanyecz, "Pizza for bitcoins?", bitcointalk (archived copy)What happened