On May 17, 2010, programmer Laszlo Hanyecz posted an offer on the BitcoinTalk forum: 10,000 BTC in exchange for two pizzas. Five days later, on May 22, a fellow forum user took him up on it — and Bitcoin Pizza Day was born, marking the first documented real-world commercial transaction using Bitcoin.
At the time, 10,000 BTC was worth roughly $41. At Bitcoin's all-time highs, that same stack was valued at over $700 million — a figure that has made the trade simultaneously legendary and bittersweet in crypto lore.
The transaction matters not because of what was lost, but because of what it proved: that Bitcoin could function as a medium of exchange for real goods and services. Hanyecz himself has said he has no regrets, framing the purchase as a necessary step in demonstrating Bitcoin's utility at a time when the network had no established value at all.
CoinTelegraph