Fatto matematico: 1290 is the number of connected graphs with 8 vertices and 16 edges.
Trivia: 1290 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: July 13th is the day in 1919 that the British airship R34 lands in Norfolk, England, completing the first airship return journey across the Atlantic in 182 hours of flight.