general_fact: 1743 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 1743 is an uninteresting number.
trivia: 1743 is a boring number.
historical_date: October 8th is the day in 1856 that the Second Opium War between several western powers and China begins with the Arrow Incident on the Pearl River.