Marivea al'Corriyi
Aes Sedai
That theory...is actually really depressing. The thought that all of our miserable earth history repeats again and again! But, it is extremely interesting, well thought out and written.We have a very old theory on this
http://library.tarvalon.net/index.php?title=Ages_of_the_Wheel_Theory
It has spoilers, up to book four, but probably nothing major