general_fact: 21125 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 21125 is a boring number.
trivia: 21125 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: November 1st is the day in 1604 that William Shakespeare's tragedy Othello is presented for the first time, at Whitehall Palace in London.