Fait général: 13800 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 13800 is an unremarkable number.
Culture générale: 13800 is a boring number.
Date historique: October 12th is the day in 1793 that the cornerstone of Old East, the oldest state university building in the United States, is laid on the campus of the University of North Carolina.