Bitcoin Pizza is the popular name given to an early transaction where Laszlo Hanyecz paid 10,000 BTC for two Papa John's pizzas.
On May 18, 2010, Laszlo posted a thread to Bitcointalk where he asked if someone would order 2 pizzas for him by phone, on their credit card, in exchange for 10,000 BTC.
One reply on the original Bitcointalk thread mentioned that 10k BTC was a "bit too expensive" for two pizzas, as it was worth over U$ 41.
At today's prices, the pizza transaction would total over U$ 91 million, making them the most expensive pizzas ever purchased.
Bitcoin Pizza Day is celebrated every year on May 22.
Cryptocurrency enthusiasts gather together to order pizza and often publish meeting photos on social media.
— CBS News (@CBSNews) May 23, 2019
Popular cryptocurrency exchanges, such as Binance, also mark the date with specially crafted pizza:
— Binance (@binance) May 22, 2019