sentences:  It was his race that discovered and nurtured many of what the Humans and Minbari refer to as the First Ones, including the Vorlons and the Shadows.In the millennia after most of the First Ones left the galaxy, Lorien came to reside on Z'ha'dum, and it is his continued presence there that draws the Shadows to return every time they are driven off.However, in late 2260, during the final Shadow War, Capt.