Fait général: 1980 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1980 is the number of ways to fold a 2×4 rectangle of stamps.
Culture générale: 1980 is an unremarkable number.
Date historique: June 2nd is the day in 1990 that the Lower Ohio Valley tornado outbreak spawns 66 confirmed tornadoes in Illinois, Indiana, Kentucky, and Ohio, killing 12.