Hecho general: 75991 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 75991 is a boring number.
Trivia: 75991 is an unremarkable number.
Fecha histórica: January 21st is the day in 1977 that President Jimmy Carter pardons nearly all American Vietnam War draft evaders, some of whom had emigrated to Canada.