general_fact: 8118 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 8118 is a strobogrammatic number.
trivia: 8118 is an unremarkable number.
historical_date: March 23rd is the day in 1989 that Stanley Pons and Martin Fleischmann announce their discovery of cold fusion at the University of Utah.