Fait général: 2148 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 2148 is the number of 15-ominoes with a horizontal or vertical line of symmetry.
Culture générale: 2148 is an unremarkable number.
Date historique: November 17th is the day in 1973 that the Athens Polytechnic Uprising against the military regime ends in a bloodshed in the Greek capital.