Fait général: 6688 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 6688 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 6688 is a boring number.
Date historique: April 23rd is the day in 1635 that the first public school in the United States, Boston Latin School, is founded in Boston, Massachusetts.