general_fact: 60991 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 60991 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 60991 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: December 26th is the day in 1900 that a relief crew arrives at the lighthouse on the Flannan Isles of Scotland, only to find the previous crew has disappeared without a trace.