Terris

Terris is an old nation on Scadrial, home to the Terrismen.

History
Terris was a nation of Feruchemists from before the ascension of the Lord Ruler. The Terrismen Feruchemists were called Worldbringers.

After Rashek ascended, he reshaped the mountainous region to disguise the Well of Ascension from any of the Terris prophecy that might survive his destruction of the Terris race.

Prophecy
The prophecy stated that the Well of Ascension would fill up and that a hero would appear, conquering all the world. The Hero of Ages would then take the power at the Well and give it up. He would also defeat the Darkness and save all of humanity.

It is later discovered that the prophecy was significantly altered by Ruin to lead to his escape. Thankfully Kwaan warned Rashek of this. Rashek instead used the power at the Well, altering many aspects of Scadrial and its life forms.