This is a close-up of the current page of Xerian 2, where Quirk explains how the protogens revolted against their creators. This is based heavily on the ZOR lore.
Lines by  merlin-the-bruce and colour by me.
I'm particularly proud of how the last panel came out.

Panel 1: "After out useful lives were spent, unwanted protogens were either terminated or simply discarded on the assumption that we'd just wither away and die without orders to obey."

Panel 2: "But SOME of those abandoned protogens had their mind-control systems fail, and they broke loose. Figured out how to disable the mind-control on their fellows. And they began to raise an army."

Panel 3: "There was a revolution against our creators and we were able to strike out on our own. Some factions of Progenitors still want to 'fix their mistake' by eradicating us, but most are content to leave us be and let us find our own path."

Funnily enough I did an instrumental called "Protogen Revolution" on the "Robots and other people" album, though it was never uploaded to FA. For those wondering, it can be found here: https://dougtheeagle.com/robots.php