The first and largest cryptocurrency by market cap. Bitcoin introduced the concept of a decentralised peer-to-peer electronic cash system secured by proof-of-work mining. It remains the dominant digital store of value.
2008
Bitcoin whitepaper published by Satoshi Nakamoto
2009
Genesis block mined, network launched
2010
First real-world transaction: 10,000 BTC for two pizzas
2017
Price reaches $20,000 for first time
2021
El Salvador adopts Bitcoin as legal tender
2024
Spot Bitcoin ETF approved in the United States
Peer-to-peer digital payments and store of value
💡 Did You Know
The genesis block contains the message "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" — a nod to why Bitcoin was created
⚠ Controversies & Red Flags
Satoshi's identity remains unknown. Bitcoin has been declared dead hundreds of times. Its energy usage is frequently criticised.