math_fact: 8071 is the number of connected graphs with 11 edges.
trivia: 8071 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: February 4th is the day in 1996 that Major snowstorm paralyzes Midwestern United States, Milwaukee, Wisconsin ties all-time record low temperature at -26°F (-32.2°C).