Hecho matemático: 9854 is the index of a triangular number containing only 3 different digits.
Trivia: 9854 is a boring number.
Fecha histórica: December 23rd is the day in 2002 that a MQ-1 Predator is shot down by an Iraqi MiG-25, making it the first time in history that an aircraft and an unmanned drone had engaged in combat.