general_fact: 735 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 735 is the smallest number that is the concatenation of its distinct prime factors.
trivia: 735 is an uninteresting number.
historical_date: January 4th is the day in 1966 that a military coup takes place in Upper Volta (later Burkina Faso), dissolving the National Parliament and leading to a new national constitution.