Having read through most of this mighty tome now, I had a couple of questions:
1) What edition of the RPG was some of this stuff written for?
Dilgar section makes reference to the PHB in passing, something unrequitred for 2E, no?
Also, the Ancient Echoes section makes reference to an upcoming Vorlon and Shadow book, if that was what was to become Darkness & Light then that pegs that as 1E also?