general_fact: 29543 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 29543 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 29543 is an unremarkable number.
historical_date: November 18th is the day in 1903 that the Hay-Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.