general_fact: 83412 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 83412 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 83412 is an unremarkable number.
historical_date: May 16th is the day in 1868 that President Andrew Johnson is acquitted in his impeachment trial by one vote in the United States Senate.