general_fact: 4449 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 4449 is an uninteresting number.
trivia: 4449 is an unremarkable number.
historical_date: March 6th is the day in 2008 that a Palestinian gunman shoots and kills 8 students and critically injures 11 in the library of the Mercaz HaRav yeshiva, in Jerusalem, Israel.