general_fact: 28909 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 28909 is an unremarkable number.
trivia: 28909 is a boring number.
historical_date: February 23rd is the day in 1944 that the Soviet Union begins the forced deportation of the Chechen and Ingush people from the North Caucasus to Central Asia.