general_fact: 91902 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 91902 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 91902 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 14th is the day in 1921 that Tannu Tuva, later Tuvinian People's Republic is established as a completely independent country (which is supported by Soviet Russia).