Hecho general: 1715 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 1715 is an unremarkable number.
Trivia: 1715 is an uninteresting number.
Fecha histórica: September 10th is the day in 1972 that the United States suffers its first loss of an international basketball game in a disputed match against the Soviet Union at Munich, Germany.