Bitcoin Pizza Day is celebrated every year on May 22 to mark the first real-world transaction using Bitcoin in 2010. On this day, a programmer named Laszlo Hanyecz paid 10,000 BTC for two pizzas, proving that Bitcoin could be used as a medium of exchange, not just a digital experiment. This historic purchase highlighted Bitcoin’s potential as money and stands as a powerful reminder of how far cryptocurrency has come—from a niche idea to a global financial innovation.