Fatto generale: 1290 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1290 is the number of connected graphs with 8 vertices and 16 edges.
Trivia: 1290 is a boring number.
Data storica: July 13th is the day in 1793 that Journalist and French revolutionary Jean-Paul Marat is assassinated in his bathtub by Charlotte Corday, a member of the opposing political faction.