math_fact: 9726 is the smallest number in base 5 whose square contains the same digits in the same proportion.
trivia: 9726 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 17th is the day in 2005 that the first forced evacuation of settlers, as part of the Israel unilateral disengagement plan, starts.