Elijah, already considered unorthodox for his focus on improving technology, rather than simply preserving it, ordered it to be converted into the Brotherhood's headquarters despite objections from nearly every paladin in the chapter. The new chapter settled into the Hidden Valley bunkers, then rediscovered Helios One. As Elijah proposed developing new, ethically questionable weapons somewhere around the early 2260s, the Elders decided to send him away, east, to form a new chapter of the Brotherhood in the Mojave.
Elder Elijah, a Scribe-come- Elder, pushed for the development of new technologies, which put him at odds with the more conservative members of the Brotherhood. The formation of the Mojave chapter was a result of disagreements within the Elder council.