general_fact: 47965 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47965 is a boring number.
trivia: 47965 is an uninteresting number.
historical_date: April 28th is the day in 1975 that General Cao Van Vien, chief of the South Vietnamese military, departs for the US as the North Vietnamese Army closed in on victory.