The Bitcoin Pizza Day is an iconic annual anniversary in the cryptocurrency field, celebrated every year on May 22nd by the global crypto community. Its commemorative significance originates from the groundbreaking first real-world transaction in Bitcoin's development history. On May 22, 2010, a programmer named Laszlo Hanyecz from Florida, USA, posted a transaction request on a Bitcoin forum, offering 10,000 Bitcoins in exchange for two pizzas. At that time, a user named Jeremy Sturdivant responded to the invitation by ordering two pizzas worth about $25 with a credit card, which were delivered to Hanyecz's home. This seemingly ordinary transaction is, in fact, of great significance; it marked Bitcoin's first successful application in the purchase of physical goods and became a pivotal turning point in the transition of cryptocurrency from conceptual idea to practical application, leaving a significant mark in the history of digital currency development.