You probably bought a scammed bitcoin, if you buy that last 2009, then there might be a chance that it's a real bitcoin.
Better read in https://en.wikipedia.org/wiki/Bitcoin about bitcoin so you will be educated, early investors made a lot of money if they sell even at the price now, so you might made a fortune if you are holding a real bitcoin, but as you said 20 years ago, no bitcoin has exist at that time yet.


Check what's inside the drive first and update us here.