general_fact: 26891 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 26891 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 26891 is an uninteresting number.
historical_date: August 15th is the day in 1974 that Yuk Young-soo, First Lady of South Korea, is killed during an apparent assassination attempt upon President of South Korea, Park Chung-hee.