Thirteenth Legion
From MediaWiki
The Thirteenth Legion (also known as the "Lost Legion") was an ancient group of Autobots that abandoned Cybertron after the wars that consumed the planet. They settled on the planet Antilla where they formed a thriving community with advanced technology.
The colony continued peacefully for some time until an asteroid shower impacted the planet and infected the Autobot colonists with Cosmic Rust. Unable to discover a cure despite their advanced technology, the colonists all died. Cosmic Rust
The written language of Antilla is Ancient Autobot, a dialect no understood by modern Transformers. This, combined with other factors suggests the Thirteenth Legion broke from Cybertron between 11 million years ago and 9 million years ago.
