general_fact: 2070 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2070 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 2070 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 31st is the day in 1949 that the retreat of the Democratic Army of Greece in Albania after its defeat on Gramos mountain marks the end of the Greek Civil War.