general_fact: 1771 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 1771 is a tetrahedral palindrome.
trivia: 1771 is an unremarkable number.
historical_date: November 5th is the day in 1838 that the Federal Republic of Central America begins to disintegrate when Nicaragua separates from the Federation.