general_fact: 15273 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 15273 is an uninteresting number.
trivia: 15273 is an unremarkable number.
historical_date: October 24th is the day in 1930 that a bloodless coup d'état in Brazil ousts Washington Luís Pereira de Sousa, the last President of the First Republic.