Fait mathématique: 8510 is a value of n for which the sum of the first n primes is a palindrome.
Culture générale: 8510 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: April 19th is the day in 1809 that an Austrian corps is defeated by the forces of the Duchy of Warsaw in the Battle of Raszyn, part of the struggles of the Fifth Coalition.