general_fact: 2051 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2051 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 2051 is an unremarkable number.
historical_date: August 12th is the day in 1944 that Alençon is liberated by General Leclerc, the first city in France to be liberated from the Nazis by French forces.