Follow the decisions
Bitcoin is a chain of decisions, not a single date.
18 articles in this rubric.
Ten BTC Between Two Computers
The first known transfer from Satoshi to Hal Finney tested whether the network could preserve one action between two participants.
Read article ↗Peer discovery · 2009–2013When Bitcoin Introduced Computers Through IRC
How a temporary centralized helper introduced nodes without gaining authority over the network’s rules or history.
Read article ↗First calculated rate · October 2009A Price Before There Was a Market
How electricity costs gave BTC its first published reference point before a functioning market existed.
Read article ↗Bitcoin Market · January–April 2010Nine Participants and the First Trade
How test orders, a discovered flaw, and a handful of participants became the first documented BTC market.
Read article ↗May 22, 201010,000 BTC for two pizzas: loss or proof?
One exchange showed that digital units could leave the screen and purchase a real result.
Read article ↗Everyday payments · 2010 → 2026From Pizza to Groceries
Where BTC reaches an ordinary checkout, who receives the bitcoin, and why permitted payment is not the same as legal tender.
Read article ↗Bitcoin 0.3 · July 2010How Bitcoin Reached Slashdot’s Audience
The community prepared the submission together, while an outside audience responded with criticism, questions, and software testing.
Read article ↗March 11–12, 2013The night two versions of Bitcoin existed
Miners abandoned the stronger branch to restore a compatible shared history.
Read article ↗Block 74638 · August 15, 2010184 billion BTC that should never have existed
A value-overflow bug created an impossible amount, and participants adopted repaired rules within hours.
Read article ↗2009 → 2010Who drew the orange ₿?
Satoshi offered a foundation, Bitboy changed it, and a community decided through use which symbol would endure.
Read article ↗December 2010 → June 2011Do Not Kick the Hornet's Nest
Why Satoshi asked WikiLeaks to wait—and why the episode does not prove the reason for his departure.
Read article ↗Bitcoin Core 31.0 → 31.1 · 2026When Private Broadcast Could Reveal an IP
A transport fallback caused the flaw; a public warning and temporary mitigations were followed by a corrective release.
Read article ↗Block 0 · January 3, 2009The Newspaper Line Inside the First Block
What The Times headline in the genesis block proves—and which meanings remain interpretation.
Read article ↗BIP 13 and BIP 16 · 2012 · 10 min readP2SH: The Address That Hid Its Spending Conditions
How P2SH moved complexity from sender to receiver, made multisig payments practical, and required careful activation.
Read article ↗Mining · Energy and flexible loadBitcoin Mining and the Grid: A Consumer That Can Switch Off
Why mining uses substantial energy, how it can curtail quickly, and why that does not automatically make it helpful to every grid.
Read article ↗Consensus · BIP 30 · 2010–2012Two Transactions with One Name: the Rule Bitcoin Did Not Yet Have
How duplicate transaction identifiers exposed a gap in Bitcoin's early rules and led to BIP 30.
Read article ↗BitDNS · December 2010Why Satoshi Did Not Want to Put the Whole World in One Chain
What the BitDNS discussion revealed about blockchain boundaries, independent rules, and shared mining work.
Read article ↗Mining · 2009–2024From CPUs to ASICs: How Bitcoin's Mining Rules Changed
How home processors gave way to ASICs, the subsidy fell from 50 to 3.125 BTC, and full nodes retained the final say.
Read article ↗