math_fact: 786 is the largest known n for which _{2n}C_{n} is not divisible by the square of an odd prime.
trivia: 786 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: February 24th is the day in 1983 that a special commission of the U.S. Congress releases a report that condemns the practice of Japanese internment during World War II.