Fatto matematico: 61907 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 61907 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: 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.