Bitcoin calendar.

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

Next up

Today

BTC Balkans

ConferencesSunday 1 November

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

October 2025, dates in UTC
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
		1	2Silk Road closed, 2013	3	4	5
6Bitcoin's October 2025 record	7	8UK lets retail investors buy crypto ETNs	9	10Bitcoin Core 30.0 lifts the OP_RETURN limitLiquidation crash	11Liquidation crash	12
13	14US files to seize 127,271 bitcoin, its largest forfeiture	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29Record difficultyFirst bitcoin ATM, 2013	30	31Whitepaper, 2008

Adds the dates ahead to Apple Calendar or Outlook, and keeps them up to date. In Google Calendar, use Add to Google Calendar, or download the file.

FBI shuts down Silk Road, 2013
12 years ago. The FBI shut down Silk Road, a hidden online market for illegal drugs where buyers paid in bitcoin, and arrested Ross Ulbricht, who was later convicted of running it.
PolicySource

Bitcoin's October 2025 record
Bitcoin reached a record above $126,000. CoinGecko records the all-time high as $126,080 at 10:57 UTC.
Markets · 10:57 UTCSource

UK lets retail investors buy crypto ETNs
The UK Financial Conduct Authority lifted its ban on selling crypto exchange-traded notes (ETNs), securities that track the price of a cryptocurrency such as bitcoin, to ordinary investors.
PolicySource

Bitcoin Core 30.0 lifts the OP_RETURN limit
Bitcoin Core 30.0 was released, raising the default limit on data in OP_RETURN outputs (unspendable outputs used to attach data to a transaction) from 83 bytes to 100,000 bytes, which in practice removes the cap.
NetworkSource
The biggest liquidation crash on record
About $19 billion of leveraged crypto trades were liquidated in 24 hours, the largest such event on record, after President Trump announced an extra 100% tariff on Chinese imports. Liquidations happen when exchanges forcibly close borrowed bets that have lost too much.
Markets · Until 11 OctSource

US files to seize 127,271 bitcoin, its largest forfeiture
US prosecutors filed to forfeit about 127,271 bitcoin, then worth about $15 billion, in what the Justice Department called the largest forfeiture action in its history. The bitcoin was already in US government custody.
PolicySource

Mining difficulty reaches a record
Mining difficulty, a measure of how hard it is to find a block, rose 6.3% at block 921,312 to a record of about 156 trillion. As of October 2026 it had not been higher.
Network · 10:14 UTCSee block 921,312Source
The first bitcoin ATM opens, 2013
12 years ago. A bitcoin ATM made by Robocoin went live in a Waves Coffee House in downtown Vancouver, Canada. CBC News reported it as a world first: after scanning the customer's palm, it swapped Canadian dollars for bitcoin and back.
MilestonesSourceWhat happened

The Bitcoin whitepaper, 2008
17 years 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.
MilestonesSourceWhat happened