In May 2010, California student Jeremy Sturdivant, then 19, came across an unusual offer on a cryptocurrency Internet forum: he could receive 10,000 Bitcoins, estimated at $41 at the time, in exchange for delivering two large pizzas to Florida resident Laszlo Hanyecz, 28.

Sturdivant fulfilled the order, sending him two big pizzas from Papa John's (cheese and "supreme") — a transaction that would go down in history as the first physical Bitcoin purchase, commemorated by the annual Bitcoin Pizza Day on May 22.

Sturdivant, on the other hand, didn't put the Bitcoins aside for the future; instead, he spent them all on travel.

The $10,000 Bitcoin haul would be worth a speculative $365 million today.

“I had no idea how big it was going to get,” Sturdivant admitted. Despite missing out on untold riches, the now-30-year-old said he is "proud to have contributed" to the "global phenomenon."