Valen's universe, sometimes called the Babylon timeline, was a parallel universe within the greater multiverse of alternate quantum realities. Similar in some ways to the Federation's primary universe, it was greatly different in others, both universes having begun to diverge between 100,000 and 10,000 years before the 23rd century, if not earlier. Its names derived from the importance of the Minbari known as Valen, and the Babylon 5 space station. (Star Trek: Pendragon)