Fait mathématique: 1027 is the sum of the squares of the first 8 primes.
Culture générale: 1027 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: October 23rd is the day in 1946 that the United Nations General Assembly convenes for the first time, at an auditorium in Flushing, Queens, New York City.