FILE PHOTO: Bitcoin (virtual currency) coins placed on Dollar banknotes, next to computer keyboard, are seen in this illustration picture, November 6, 2017.  REUTERS/Dado Ruvic/Illustration/File PhotoThomson ReutersSince it was created in 2009, Bitcoin has experienced significant highs and lows.

Bitcoin is considered the preeminent cryptocurrency in the world, but there’s still plenty of mystery surrounding its creation. Who came up with Bitcoin? Was it created by more than one person? And who is Satoshi Nakamoto?

Here’s a rundown on the currency’s strange beginnings: