General fact: 7851 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 7851 is a boring number.
Trivia: 7851 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: June 29th is the day in 1888 that George Edward Gouraud records Handel's Israel in Egypt onto a phonograph cylinder, thought for many years to be the oldest known recording of music.