Board Thread:Lore Discussion/@comment-27999811-20170609181003/@comment-173.24.46.198-20170612023320

Honestly, it was the lies and deceit of the Thalmor using the Khajiit as measly slaves, and a resistance was formed around the basis of the fact, they needed to be stopped. Not much is really *known* about it, but the general idea is Khajiit are treated as lesser people in their own home and it arose with issues.