Okay, here's how it is. Over the weekend, while engaged in one of my other Battletech projects, I vented over some of the more eregious fluff in TRO 3060 (it was the Kabuto, if anyone cares). In discussion with another griping fan, this became a joint project to rewrite the background of Battletech, at least up to the 3025-era equivalency.
Now that's kind of a big job. And given the factionalism of the universe and of the fanbase (I'm above that, obviously,

) it really needs someone to fight the corner of each faction. Otherwise someone (possibly wearing green) may wind up the whipping boy.
At the moment, what we have is a draft of the timeline from 2018 to 3425 so you can see already that more than a few things have changed and a few notes for the five major and four minor factions. What we'd like to aim for is something approaching seven handbooks (each of the Great Houses, one for the Major Periphery states and one for ComStar and the Minor Periphery states) and a technical readout. That's going to be a bit of work.
So, calling for volunteers. We have writers tentatively lined up for the Taurians and for the Free Worlds League. I'm more or less general editor, overseer and he-who-argues-with-people. If you would like, individually or as a team, to get involved in writing a faction or making other contribution then please get in touch.
Here's a rough overview of the timeline:
Terran Alliance Era (2086-2237) Unification of Terra. Invention of the Kearny-Fuchida drive. First Diaspora. Outer Reaches Rebellion.
The Dark Age (2237-2316) Collapse of the Terran Alliance. Second Diaspora. Colonisation spreads to roughly the current borders of the Inner Sphere. Formation of the Terran Hegemony.
Terran Hegemony Era (2316-2571) The Reconquest of the Inner Sphere by the armies and diplomats of the Hegemony. Dominance of the Aerospace Fighter. Third Diaspora.
Star League (2571-3051) Ian Cameron reforms the Terran Hegemony into the Star League. Dominance of the BattleMech. Unification of known space under the Star League. Golden Age of the Star League.
The Fall (3051-3084) Death of Simon Cameron. Ascendancy of Stefan Amaris and Aleksander Kerensky. Amaris Coup. Star League Civil War. The Exodus.
First Succession War (3084-3211) Emergence of five great Successor States from the dozens of states that are spawned by the end of the Star League.
Second Succession War (3216-3293) Star League Ministry of Communications officially becomes ComStar. Kentares Massacre. Davion Civil War. The Great Interdiction and the Ares Conventions.
Third Succession War (3293-3420) With only half the population and a tiny percentage of the industry of the Star League, the Inner Sphere continues to fight over the empty throne of the First Star Lord.