
Maxis formed the group after discovering Element 115 – also known as Moscovium or Divinium – in 1931. In the story, the origins of the Ray Gun on Earth can be traced back to Doctor Ludvig Maxis, a doctor who formed a research group known as Group 935.

Although the events of the Call of Duty zombie games take place in their own timeline, that timeline is relatively consistent and has some unique aspects of its backstory.
