Originally Posted by Darth Sun_Tzu
Well then it would no longer be Knights of the OLD Republic, because the theory is that it was Darth Plagus (Palpatine's Master) that created Anakin and the Prophecy.
I think that theory is bunk, but in any case...
The prophecy existed long before Anakin was born. The prophecy fortold of his birth, and the impression is that it is an ancient prophecy. How old we don't know. I'd venture to say it was around long before the KOTOR timeframe (4000 BBY).