general_fact: 4037 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 4037 is a member of the Fibonacci-type sequence starting with 1 and 6.
trivia: 4037 is a boring number.
historical_date: January 19th is the day in 1607 that San Agustin Church in Manila is officially completed; it is the oldest church still standing in the Philippines.