Hecho general: 71000 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 71000 is an unremarkable number.
Trivia: 71000 is a boring number.
Fecha histórica: May 22nd is the day in 1968 that the nuclear-powered submarine the USS Scorpion sinks with 99 men aboard 400 miles southwest of the Azores.