Fait général: 1405 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1405 is the sum of consecutive squares in 2 ways.
Culture générale: 1405 is an uninteresting number.
Date historique: November 5th is the day in 1990 that Rabbi Meir Kahane, founder of the far-right Kach movement, is shot dead after a speech at a New York City hotel.