The man who bought pizza for 10,000 Bitcoins, Laszlo: Never regretted it, felt like he won the internet that day.

On May 18, 2010, at 12:35, a user with the ID of Laszlo posted a bounty on the Bitcoin forum, willing to exchange 10,000 Bitcoins for two large pizzas. The seller could make them himself or order takeout for him, and he detailed his taste preferences in the post. Earlier, on April 16, he had joined the forum Bitcoin Talk Forum initiated by Bitcoin's founder Satoshi Nakamoto.

Bitcoin had only just emerged in 2010, and people were still relatively unfamiliar with this so-called 'digital cryptocurrency' existing on the internet, and the concept of trading it had not yet formed. Therefore, the post did not immediately attract much attention, with only a few users expressing willingness to buy him pizza, but transactions could not be completed due to the seller not being in the U.S.

At that time, 10,000 Bitcoins were worth about $30, which made Laszlo doubt whether he had offered too little. It wasn't until four days later, on May 22, that Laszlo replied on the forum that he had successfully bought pizza and shared a photo of it. May 22 thus became known as 'Bitcoin Pizza Day.'

The historical significance of this transaction is that it was the first transaction in Bitcoin's history, marking the moment Bitcoin gained trading functionality as a currency, rather than just being stored online. Of course, this first offline transaction with Bitcoin was also somewhat experimental, testing whether Bitcoin indeed had real-world 'currency' functionality.

According to an interview with Laszlo by Bitcoin Magazine in 2019, when asked why he did this, Laszlo stated, 'I wanted to use Bitcoin to buy pizza because, for me, it was free pizza. I mean, I created this thing and mined the Bitcoins, and I felt like I won the internet that day — I earned pizza by contributing to an open-source project. Usually, hobbies cost time and money, but in this case, my hobby bought me dinner.'