Forum:KB:Chancellor Valorum

I was reading something about Darth Zannah, Darth Bane's apprentice. And it said "Zannah: "It's done. When Chancellor Valorum's shuttle lands, Kel and his followers will be waiting for him."    Bane: "You have done well."     Zannah: "Is there any chance they will succeed?"     Bane: "No."" Darth Bane's reign takes place 1,000 years before BBY. How can Valorum possibly be alive this long if he's only human?