$ 0 0 ante diem iii kalendas februarias 58 B.C. — “official” birthday of Livia, wife of Augustus 9 B.C. — dedication of the Ara Pacis 133 A.D. — birth of the future emperor Didius Julianus 228 A.D. — martyrdom of Martina (?) 311 A.D. — martyrdom of Savina of Milan