
Following the inception of the newly created Chapter, officers and specialists were requisitioned from the parent Chapter in order to begin the arduous task of standing up a newly formed Chapter. It was from the Salamanders' gene-stock that Chapter 475 - later to be known as the Silverbacks - was born. It is generally believed by Imperial scholars that the Silverbacks were one of several Space Marine Chapters created during this tumultuous period in history to help stem the tide of insurrection and rebellion that was rife throughout Imperium. During this period, the rebellious Ur-Council of Nova Terra dismissed the authority of the High Lords of Terra and claimed separate rule over the Imperium's Segmentum Pacificus. During this troubled period, the Imperium of Man fractured for a time into warring factions that lasted for over nine centuries, and would not end until the late-35 th Millennium. During the mid-34 th Millennium, the dark and terrible period in Imperial history known as the Nova Terra Interregnum occurred. This little recorded Founding most likely took place sometime between the late M34 or early M35 During this period in Imperial history, warp storm activity increased over the entire Imperium, and anarchy descended upon many isolated worlds. The Silverbacks are a little-known Space Marine Chapter supposedly created during the 9 th Founding.

A Silverbacks Ompunganse (Battle-Brother) of the 4 th Iviyo (Company) charging the foe in the heat of battle.
