Pythagorean Triple Square Day, as one man affectionately calls 9/16/25, is a day like no other this century.
Once a century, a very special day comes along. That day is today — 9/16/25.
Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme. But the particular string of numbers in today's d... [2691 chars]