Hecho general: 1290 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 1290 is the number of connected graphs with 8 vertices and 16 edges.
Trivia: 1290 is a boring number.
Fecha histórica: July 13th is the day in 1174 that William I of Scotland, a key rebel in the Revolt of 1173–1174, is captured at Alnwick by forces loyal to Henry II of England.