general_fact: 5018 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 5018 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 5018 is an unremarkable number.
historical_date: September 26th is the day in 1687 that the city council of Amsterdam votes to support William of Orange's invasion of England, which became the Glorious Revolution.