Hey there! So the birthday of Bitcoin is the date that the very first block in the Bitcoin blockchain was mined. This block is called the "genesis block" and it was mined on January 3, 2009 by the mysterious person or group known as Satoshi Nakamoto 🔮 The mining of the genesis block marks the official start of Bitcoin and the beginning of the blockchain. The block contained a message from Satoshi that said something like "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks," which is thought to be a reference to the financial crisis of 2008 and the need for a decentralized alternative to traditional financial systems 🎉 Since that first block was mined, Bitcoin has become a super popular and widely-used cryptocurrency, with a market cap of over $1 trillion as of January 2021. Despite some ups and downs, Bitcoin has remained a major player in the world of finance and tech 👽 So Bitcoin is important for DeFi because it was the first cryptocurrency to use a decentralized, peer-to-peer network to facilitate online transactions. This tech has the potential to shake up traditional financial systems and create more equal financial opportunities for people all over the world 👾 Swap any token to Bitcoin here 💜