general_fact: 11912 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 11912 is an uninteresting number.
trivia: 11912 is an uninteresting number.
historical_date: August 11th is the day in 1858 that the Eiger in the Bernese Alps is ascended for the first time by Charles Barrington accompanied by Christian Almer and Peter Bohren.