AE (After Entharion)

AE (After Entharion) refers to the period of time from Entharion the Wise to the present. The first year of Entharion was the year 0 AE. When Pseudo-Duncanthrax began the Great Underground Empire project, GUE gradually became a replacement for AE. These two terms were used interchangeably until the latter part of the eighth century when the use of GUE had become a common practice.

SOURCE(S): The Encyclopedia Frobozzica, misc. references