Fait mathématique: 1770 is the number of conjugacy classes in the automorphism group of the 13 dimensional hypercube.
Culture générale: 1770 is an uninteresting number.
Date historique: November 4th is the day in 1852 that Count Camillo Benso di Cavour becomes the prime minister of Piedmont-Sardinia, which soon expands to become Italy.