This man, named Laszlo Hanyecz, sold 10,000 Bitcoins for pizza.

He posted on a forum: "I will pay 10,000 Bitcoins for pizza."

At that time, this amount was very cheap, around $25. Eventually, one forum user bit the bullet and ordered a "nice!" pizza from Papa John's, requesting it to be delivered to Laszlo's home in Florida.

Laszlo sent 10,000 Bitcoins via a new command-line wallet, and there it was, he got his lunch.

A few years later, the value of those 10,000 Bitcoins soared to tens of millions of dollars. May 22 is celebrated every year as "Bitcoin Pizza Day," a bold tribute to the first real transaction in the digital world using cryptocurrency.