Bitcoin began as a proposal from an unknown author to let people send value over the internet without relying on a bank to keep the definitive ledger. It grew into a global network, a fiercely debated experiment in money, and an asset available through mainstream investment products. Its history is more useful than a price chart alone: each milestone explains why people use Bitcoin, why its rules are hard to change, and where the risks sit.
This is the first article in our Story of Tokens series. Bitcoin’s BTC is technically the native coin of its own network, though we use “tokens” as an umbrella name for the series. Here is the journey from the 2008 paper to the institutional and policy milestones of the 2020s.
2008: Satoshi Nakamoto publishes the idea
On 31 October 2008, someone using the name Satoshi Nakamoto announced Bitcoin: A Peer-to-Peer Electronic Cash System on a cryptography mailing list. The paper described a way to order transactions using proof of work and a chain of blocks, so network participants could agree on the history of payments without a central operator. The double-spending problem—copying digital money and trying to pay two people with the same units—was central to the design.
The 2008 financial crisis is often used to explain the timing. It is fair to say Bitcoin arrived amid distrust of financial intermediaries; it is harder to prove Satoshi’s complete personal motivation. The inventor’s identity remains unverified, and the network’s rules matter more than a claimed identity.
2009: The genesis block and first software
Satoshi mined Bitcoin’s genesis block on 3 January 2009. It included a reference to a newspaper headline about a bank bailout, an enduring marker of its launch era. Days later, the first public software release let others join. Satoshi’s release announcement described the program as experimental. There was no public token sale, venture allocation or company balance sheet behind BTC’s initial distribution: new coins entered through mining under the protocol’s rules.
Bitcoin uses a public ledger. Miners propose blocks through proof of work; nodes independently check whether those blocks and their transactions follow the rules. A wallet holds the keys that authorize spending, not physical coins. Our address guide explains the separate EVM world; a Bitcoin address is not an EVM address, and sending across the wrong network can put funds at risk.
2010: Two pizzas turn an experiment into a payment story
In May 2010, programmer Laszlo Hanyecz offered 10,000 BTC for two pizzas on the BitcoinTalk forum. He later reported the trade completed on 22 May. The story is often retold as a lesson in how valuable those coins later became, but its historical importance is more basic: people were testing whether an internet-native currency could buy something outside its own community.
That did not make Bitcoin a convenient everyday payment method everywhere. Its market value, transaction costs and user experience would change repeatedly as more people joined. The pizza trade was a proof of use, not proof that every future payment problem had been solved.
2012 to 2024: The halvings put the supply rule in public view
Bitcoin started with a block subsidy of 50 BTC. The subsidy is cut in half every 210,000 blocks, roughly once every four years. These events are called halvings. They reduce the rate of new issuance; they do not automatically double the price or guarantee any market outcome. Bitcoin’s eventual supply is capped at 21 million BTC under its current consensus rules.
| Halving | Date | Block | New subsidy |
|---|---|---|---|
| First | 28 November 2012 | 210,000 | 25 BTC |
| Second | 9 July 2016 | 420,000 | 12.5 BTC |
| Third | 11 May 2020 | 630,000 | 6.25 BTC |
| Fourth | 20 April 2024 | 840,000 | 3.125 BTC |
The dates and block heights come from Bitcoin’s halving history. Miners also receive transaction fees, and the subsidy will keep declining in later eras. The rule is central to Bitcoin’s scarcity story, while future security, fee markets and demand remain live questions.
2014: Mt. Gox exposes the difference between Bitcoin and an exchange
Mt. Gox, once a major Bitcoin trading venue, halted activity and filed for bankruptcy protection in 2014 after reporting enormous coin losses. This was a failure of a custodian and its operations, not a rewriting of Bitcoin’s ledger. The distinction became a defining lesson: ownership of a balance shown on an exchange depends on that company honoring withdrawals, while self-custody puts key management on the holder. Both approaches carry different risks.
2017: A scaling dispute and SegWit
As usage increased, Bitcoin’s limited block space became a source of high fees and disagreement over how to scale. The network activated Segregated Witness, or SegWit, in August 2017. It changed how signature-related data is handled, improved transaction capacity accounting, and helped address a transaction-malleability issue. The wider debate also produced a separate chain, Bitcoin Cash, showing that communities can disagree on rules and split rather than force every participant onto one version.
Bitcoin’s social culture formed around these arguments too. Even the term “HODL” has its own origin story from a 2013 forum post. It captures one investor attitude, though it says nothing about whether buying at a particular price is wise.
2021: Taproot and a national experiment
Taproot activated at block 709,632 in November 2021. It introduced new spending rules and Schnorr signatures, expanding what developers can build with more efficient or less revealing spending paths in some cases. It did not make every Bitcoin transaction private.
In September 2021, El Salvador’s Bitcoin Law took effect, giving BTC legal-tender status alongside the US dollar at the time. The policy became a closely watched test of national adoption. Its terms later changed, so a historical milestone should not be mistaken for a description of today’s payment requirements. The IMF’s 2025 report traces that evolution.
2024–2025: Investment products and a US reserve order
On 10 January 2024, the US Securities and Exchange Commission approved the listing and trading of spot Bitcoin exchange-traded products. This gave brokerage-account investors a regulated product whose value is tied to Bitcoin holdings. Owning shares of a fund differs from holding BTC in a wallet: investors rely on the product’s structure, fees and custodians, and generally cannot spend those shares as Bitcoin.
On 6 March 2025, a US executive order established a Strategic Bitcoin Reserve framework for government-held BTC, primarily from forfeiture proceedings. The order was a policy milestone, not a change to Bitcoin’s code or a promise that the government would buy a set amount on the open market.
What Bitcoin’s journey shows
Bitcoin has survived the departure of its pseudonymous creator, failed intermediaries, arguments over upgrades, repeated market cycles and growing institutional attention. Its core proposition remains a network whose transaction history and monetary rules can be checked by participants rather than trusted to one company. That does not remove price volatility, custody mistakes, mining concentration concerns, policy risk or the debate over its long-term use as money.
For a newcomer, the useful distinction is between Bitcoin the network, BTC the coin, and the businesses and products built around it. A milestone for an exchange, ETF or government policy affects access and perception; a network upgrade or halving changes the protocol’s operation. The next stories in this series will trace how Ethereum, Solana, Monero, Zcash and other networks chose different designs and encountered different turning points.
