general_fact: 8251 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 8251 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 8251 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 3rd is the day in 1959 that Portugal's state police force PIDE fires upon striking workers in Bissau, Portuguese Guinea, killing over 50 people.