For the last nine years since the inception of this crypto holiday, the price of Bitcoin on this very day, May 22, would show a substantial rise from the previous year, save for three instances, in 2012, in 2015 and in 2019 (but the day is not over yet.)
This date is celebrated as the day when we all remember how, on this day in 2010, programmer Laszlo Hanyecz paid another