Bitcoin Pizza Day
Easy BTC data for everybody
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Bitcoin Milestones
🌐 #0
2009/01/03
Genesis Block
The very first Bitcoin block, mined by Satoshi Nakamoto. It contains the embedded headline: 'The Times 03/Jan/2009 Chancellor on brink of second bailout for banks.'
⛏️ #1
2009/01/09
First Block After Genesis
Mined 6 days after the genesis block, this block contains the first spendable coins. The delay is one of Bitcoin's enduring mysteries — possibly Satoshi waiting for other nodes to join the network.
💻 #170
2009/01/12
First Peer-to-Peer Transaction
Satoshi Nakamoto sent 10 BTC to Hal Finney, a renowned cryptographer and the first person to run Bitcoin after Satoshi. This was the first ever Bitcoin transaction between two parties.
🍕 #57,043
2010/05/22
Bitcoin Pizza Day
Laszlo Hanyecz paid 10,000 BTC (then ~$41) for two Papa John's pizzas. The first real-world commercial Bitcoin transaction. Today celebrated annually as Bitcoin Pizza Day on May 22.
🐛 #74,638
2010/08/15
Value Overflow Incident
A critical bug created over 184 billion BTC in a single transaction. The vulnerability was discovered and patched within hours, and the chain was forked to remove the invalid coins. Bitcoin's biggest bug.
⚡ #210,000
2012/11/28
First Bitcoin Halving
Bitcoin's first block reward halving: 50 → 25 BTC. This event reduced the rate of new Bitcoin creation, implementing Satoshi's disinflationary monetary policy as coded in the protocol.
⚡ #420,000
2016/07/09
Second Bitcoin Halving
Bitcoin's second block reward halving: 25 → 12.5 BTC. By this time, Bitcoin had matured significantly, with growing adoption, institutional interest, and a much higher market price.
🔀 #478,558
2017/08/01
Bitcoin Cash Hard Fork
The last shared block between Bitcoin (BTC) and Bitcoin Cash (BCH). The community split over block size debate — BCH increased to 8 MB blocks, creating a new cryptocurrency.
🔧 #481,824
2017/08/24
SegWit Activation
Segregated Witness (SegWit) was activated, fixing transaction malleability and increasing block capacity. It also enabled second-layer solutions like the Lightning Network.
⚡ #630,000
2020/05/11
Third Bitcoin Halving
Bitcoin's third block reward halving: 12.5 → 6.25 BTC. Occurred during the COVID-19 pandemic. Bitcoin's price surged in the following months, reaching new all-time highs.
📜 #666,666
2021/01/18
Romans 12:21 Block
A famous vanity address block: multiple transactions embedded the Bible verse 'Be not overcome of evil, but overcome evil with good' (Romans 12:21) directly into the blockchain using vanity addresses.
🔧 #709,632
2021/11/14
Taproot Activation
Taproot, Bitcoin's most significant upgrade since SegWit, activated. It introduced Schnorr signatures, improved privacy, enabled more complex smart contracts, and reduced transaction fees.
🎨 #767,430
2022/12/14
First Ordinals Inscription
Casey Rodarmor inscribed Inscription #0, the first Ordinal on the Bitcoin blockchain. This sparked a new wave of NFT-like assets directly on Bitcoin, changing how people use the network.
📦 #774,628
2023/02/01
Largest Bitcoin Block
At 3.96 MB, the largest Bitcoin block ever mined at the time. Contained the Taproot Wizard inscription, showcasing the new capabilities unlocked by Taproot and Ordinals.
⚡ #840,000
2024/04/20
Fourth Bitcoin Halving
Bitcoin's fourth block reward halving: 6.25 → 3.125 BTC. This halving also saw the launch of Runes protocol, enabling fungible token creation directly on the Bitcoin blockchain.
📍 #900,000
2025/06/06
Block 900,000 Milestone
Bitcoin reached block 900,000, marking over 16 years of continuous, uninterrupted operation of the network. A testament to Bitcoin's resilience and longevity as the world's leading cryptocurrency.