General fact: 97 is the number of leap days that the Gregorian calendar contains in its cycle of 400 years.
Mathematical fact: 97 is the smallest factor of one more than the product of the first twenty-five terms of the Euclid–Mullin sequence, making it the twenty-sixth term.
Trivia: 97 is the number of different characters that can be used with a standard English Keyboard.
Historical date: April 6th is the day in 1909 that Robert Peary and Matthew Henson reach the North Pole.