The #BinancePizza Pizza Day is celebrated every year on May 22, commemorating the historic transaction in 2010 when Laszlo Hanyecz bought two pizzas for 10,000 bitcoins. This marked the first real-world transaction using Bitcoin, which was worth about $41 at the time and is now worth hundreds of millions. Pizza Day not only celebrates the beginning of Bitcoin's practicality but also witnesses the rapid development of cryptocurrency. The global crypto community holds events on this day, such as trading competitions, pizza parties, and various platforms offer promotions. Pizza Day reminds us of Bitcoin's journey from an experiment to the mainstream, while also reflecting its price's extreme volatility.