In the last couple of years, Hasbro has been making a significant effort to clarify and codify these many disparate fictions into a meaningful new timeline. These days, the novels, cartoons, and games share a history that is generally consistent with itself, and one might even reference events in another.
In the interest of offering an official history, we asked High Moon Studios, in cooperation with Hasbro, to prepare a timeline that explains the emerging fiction. If you've been paying attention to the Transformers for many years, you'll notice elements of the story drawn from the original generation of stories, not the least of which is the tracing of a history that takes the Transformers from Cybertron to Earth. Careful readers will also notice some new hints about the direction of the Fall of Cybertron storyline.