Hecho matemático: 69323 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 69323 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: October 18th is the day in 320 that Pappus of Alexandria, Greek philosopher, observes an eclipse of the sun and writes a commentary on The Great Astronomer (Almagest).