Norrani Year (N.Y.)
The method of keeping time by the Norrani Year or N.Y. is a recent innovation in the North. Much like our world's system of Before the Common Era (B.C.E.)/Common Era (C.E.) or the equivalent Before Christ (B.C.)/Anno Domini (A.D.), the system counts from the foundation of the Norrani Imperium, which collapsed around 500 N.Y. The influence of the Norrani Imperium was so great, however, that this method of tracking time has not only continued to thrive in the centuries after the Imperium's fall, but it has even spread to lands (like the North) that were never under the dominion of the Norrani. It is a convenient way of naming the years, and so has come into common use.
Equivalent: C.E. or A.D.