On May 22, 2010, programmer Laszlo Hanyecz made the first transaction using Bitcoin, purchasing two pizzas from Papa John's for 10,000 Bitcoins (worth $41 at the time) through a middleman. This transaction is celebrated as 'Bitcoin Pizza Day', marking a milestone for cryptocurrency as a medium of exchange. Today, those 10,000 Bitcoins are worth over $978 million, making Hanyecz's transaction a legend of Bitcoin's dramatic appreciation in value over time.