Grand Combined Timeline
Between 650,000 and 500,000 years ago:
Shadows go back into hiding after the last war
Vorlon Allies construct multiple #Jumpgates
Great machine constructed
#Vorlons relocate proto telepathic hominids from Earth to Narn
(Altered timeline
Babylon 5 station arrives in the Epsilon system)
500,000 to near present:
#FirstOnes refuse to intervene in the constant wars of the younger races
Shadows establish a presence on Narn and on Centauri Prime (Drakh agents)