general_fact: 12103 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 12103 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 12103 is a boring number.
historical_date: February 18th is the day in 1932 that the Empire of Japan declares Manzhouguo (the obsolete Chinese name for Manchuria) independent from the Republic of China.