There is nothing in depth about the creation of the BA, but as jack posted there are clues as to who did it.

I know RJ said the information in the BWB about forsaken and dreadlords was wrong.   In the BWB it mentions every Aed Sedai who went over to the shadow during the war of power was a dreadlord, and all the dreadlords called themselves chosen,  and were known as the Forsaken to all others.  The thirteen most powerful of the forsaken were caught and sealed in the bore.  And that throughout the years no dreadlord afte dared call themselves forsaken,  But RJ said the information in the BWB was wrong.  I think he said only the most powerful of the dreadlords were known as forsaken.

Another issue is there was no technically no BA back then, but if it was a bad channleer easily could of been a surviving dreadlord.  Or simply a channeler as Dex said out looking to find items of power.  Just some guess as  idon't really remember the scene.  As dreadlords weren't sealed, the survivors were still  about until they got hunted down.

In time they will eventually unite, it will take a long time there will be alot of mistrsut and bad blood to be forgotten.  Possible it won't happen until the power is forgotten altogether and then resdiscovered, When they rediscover the power so much time has passed they won't remember anything and it would seem natural for the men and women to work together.

Jack is right, only 1 forsaken wasn't fully sealed spinning him now and then, he also created the Black Ajah.  

So she needed some eye candy on her arm, nothing wrong with that.

RJ judged her correctly, simply she was the warning of what happened when one was never satisifed.  She was never going to have enough power or be content.  It wasn't about reaching ones goals, but about always wanting more power etc..  She was born to a poor family and did everything she could to imiate the speech and behavior of the upper-crust Taraboners.  From that she always wanted what others had and resented anyone being above her. Temaile was right in that Liandrin was the type that it was never going to be enough no matter what she had.  Liandrin in many ways was exact type the DO looked for, ambitious, selfish, willing to kill her way to the top.  But with that comes risks.  Liandrin was the warning.

Pretty much she was destined to fade away but doesn't give too much more info then what was in the book.

Moghi gave her to DF's in Amador where she was captured when the Seanchan invaded because she tried to turn her captors into the Seanchan for being Df's,  Suroth made her da'covale.  Liandrin murdered Alwhin to score points with Suroth.  She wasn't collared because Moghi's shield was still in place, but rumors that Suroth had a marath'damane started and she considered collaring Liandrin after that is the last thing it says.  So her fate is unknown, guess it depends on what happens to the house followers when Suroth was dragged off to be sold.

Again though comes down to what each Aes Sedai deems a weapon or even defence of her life.  Just meeting a whitecloak could be enough for an Aes Sedai to view her life in danger.  If the power will leave no lasting damage, is it then a weapon?  But you also have to remember many of those Aes Sadai (especially the red) viewed Rand running about by himself and able to channel as a huge danger and putting the world in danger. So I can see them easily being able to see why the power would be needed to subdue and take him to the tower to be guarded.  Using the power to shield and tie someone up isn't a weapon either.

Well the forsaken thought it was rather dumb to intentionally bind oneself like the Aes Sedai did.

It's always hard to tell because in the book the power assumption is usually from another forsaken POV.  If I remember right a Rhavin POV had him thinking Samm or him could handle either Lanfear or Gren one on one easily.  And Lanfear was suppose to be the most powerful female channeler.  Also after Agnior dies (think it was when the forsaken were discussing rand trying to cleanse the source) one of the forsaken POV was thinking only Aginors skill with making shadowspawn allowed him to be a forsaken.  So they seemed rather dismissive of his abilities.  So a lot of our knowledge of the forsakens abilities are from other forsaken's assumptions.  Which may or may not be accurate.

I will never know what RJ was thinking when he came up and then made it even worse power scale.

Again it's how each individual interprets her Oath, one could easily say it's not using it as a weapon.  They may see a weapon as trying to kill someone.As Rand killed some warders trying to escape they could easily see it as simple punishment for murder.  As for the BA I can think of only 3 in the group who were BA, may of been a few unnamed ones that died.  I forget their names but the leader who the shaido captured, Katerine, and Elisa I think their names were.

Nothing says the need to stay in  Randland, nations ask the aiel for help and the aiel can come and request aid if needed.  With gateways there is no reason why the Aiel have to stay in the wetlands every moment.  Remember all nations borders are set, which means the Aiels borders are set for the waste.  The other nations would not be happy if the Aiel show up and carve out thier own land.

I don't remember the Aiel ever saying they weren't going back.  All their homes and familes are still in the waste,  living in the waste still is hardly demonstrating arrogance since that is where they live.   They aren't going to abandon Rhudiean either.

I don't see them moving until the day the towers unify.  If I remember right Elayne has pretty much resigned herself that she will never have control over the BT and the area it covers.

The clans will go back to the waste as the aiel are basicly one clan now.  The clans won't stay in the wetlands.

If they did move the former blight would be perfect.

I assume they are souls of the animal stock they are made from.  SInce we do know someone isn't going to be constantly reborn as a shadowspawn.  So they probably have the soul that any animal might have.

ALso with the WT, you also have to remember each Ajah had their own agenda.  The companion really sheds light on some of this when you read about the ajahs and events that happened like the program where the Red Ajah went out and started gentling any man on the spot who might be able to channel.  They were told to stop and didn't and if I remember right murdered an amirlyn.  Now one has to remember the black ajah for awhile has been behind the scenes planting seeds here and there making sure there was always some divison in the tower.  Making sure Red and Blue were always opposed etc...

Which makes sense, as he thought Rand was LTT.  Dem knew LTT was pretty good with the sword.  Yeah was funny to see the dead Gawyn get mocked like that.

BS even said gawyn wasn't as good as Gawyn thought he was.  There was even a hint that some luck was involved in his beating the Hammer.  Gawyn wasn't one of the best, Demandred was a true master swordsman.  Dem also recoinzed the device Gawyn was using not to mention there is no proof that using more than one of the rings at a time made you even better then just using one.  BS even said the rings won't make a good swordsman great or a great swordsman a master, it might make one faster and harder to see but it doesn't make your sword ability any better.  Gawyn sort of bought into his own hype.

Galad wanting revenge and thinking he was one of the best with a sword made sense, Lan and Logain made sense.  I think long term it was good for Logain to get humbled like that.  Gawyn's fight made no sense to me.  I understand Gawyn's feeling that he was a prince yet here he is playing such a small role and not doing much mindset.  But his going after Demandred made little sense to me, especially using rings he knew would kill him.  

She bonded another so she could still fight, had Gawyn lived it wouldn't of chagnged anything.  She would of been despertae and suddenly came up with her magical weave.  Only difference would of been is she would of had to of released him from the bond before she did it.  I sort of took his death as a way for BS to make fans happy, GAwyn doing something stupid and getting killed because of it.

Also from the time Mat got the dagger til lMoriane did her thing only a few weeks went by I believe. I think it needs to take over Mat before he can start to taint others.

For me it might not be expressly mentioned but in book 5, when Gren opened the portal (when the forsaken were meeting) and Rhavin noticed a older weathered man with her pets and thought that was odd.  Later to learn that was Jain/Noal.

Up until then it he was one of the few forsaken she had met and he handled her pretty easy.  So I could see her having a fear of him suddenly appearing.  There was still the myth surrounding the forsaken then, of OMG the forsaken are godlike beings. Agnor may of been one of the weaker forsaken but that still means he was a powerful channeler who handled them pretty easily in EOTW.  So it would be understandable she would have a fear of him.  It would of seemed odd for it to of been a forsaken she had never met before, had this happened later it probably would of been Moghi.

I took it as that was simply being ta'veren at work, one group of trollocs met another group from a different forsaken at the time he needed it.

during his fight at stone,rand noticed at least twice trollocs battling trollocs

and correctly assumed that a myrddraal had lost control of the trollocs and

their blood-lust took over,a little later,rand was pinned down by a trolloc's body,

a second trolloc with an axe tried to take advantage of rand's predicament

but was killed by a third trolloc,when rand managed to stand up,he heard

lanfear's voice just behind him,this was her doing.

 

cross,"if i take credit,you will expect it again,and that could be deadly.

you can expect no open aid from me."lanfear definitely helped rand.

Its confirmed later Lanfear never sent any of the Trollocs there.

Doooh James beat me to it,.

trollocs fighting other trollocs was lanfear's doing,

she was busy protecting her former lover's derrier. lol.

Ummm, Lanfear never sent those.