math_fact: 6460 is a value of n for which the n^{th} prime begins with the digits of n.
trivia: 6460 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: September 7th is the day in 1916 that Federal employees win the right to Workers' compensation by Federal Employers Liability Act (39 Stat.