[Glirdan]

Here, I'll try and explain it as best as I can without my books.

After the Battle of the Last Alliance when Isildur took up the Ring and claimed it for his own, Sauron wasn't utterly destroyed. His spirit fled his body and hid in the East for a time. Then he lived in Dul-Guldur(? I forget how to spell it propoerly, if that isn't the way) and got the Nazgul, that is the Black Riders, to make Mordor ready for his return because he knew of the coming of the Istari (the Wizards) and that the White Council was going to attempt to overthrow him. Thus, he feigned retreat and once again took up abode in Mordor. I don't know how long afterwards, he took someone to "be his mouth" and tell everyone what he wanted done. How, I forget. If I missed someting in my explaination, maybe one of the more knowledgeable(?) members, such as Enca, Estel, Legolas, Gil, Fea or maybe the B-W himself could help out.

~Glirdy~