Sennex system

The Sennex system was introduced in The Essential Atlas, a 2009 reference book authored by Daniel Wallace and Jason Fry, which placed it in grid square O-9.

Behind the scenes

The Sennex system was introduced in The Essential Atlas, a 2009 reference book authored by Daniel Wallace and Jason Fry, which placed it in grid square O-9.

Sources

  • The Essential Atlas

Appearances