general_fact: 54403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 54403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 54403 is an unremarkable number.
historical_date: December 12th is the day in 1870 that Joseph H. Rainey of South Carolina becomes the second black U.S. congressman, the first one being Hiram Revels.