Although different constructs have been around in some shape or form for the last several centuries, automatons that possessed an intelligence of their own was a rather new invention, appearing a few decades before the Great Cleanse.
Remembered nowadays mostly for the unsuccessful Auto-Rebelion of 27 B.GC, where intelligent constructs tried to break free from their overlords. The Rebellion ended after 4 cycles, when a peace agreement was struck that forced the remaining auto’s back into servitude of their former owners. Although many decided that it wasn’t worth the effort, hence many set them free, leaving the world with numerous android to this day. The conclusion of the rebellion was accompanied with the Skiena Convention placing restriction on the creation of more self sentient constructs. However after the Great Cleanse construction of different sentient constructs have begun again in the different Crawler cities.