TDIAH
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pridie idus januarias 49 B.C. — Caesar crosses the Rubicon (yet another suggestion). c. 230 A.D. — martyrdom of Tatiana in Rome c. 302 A.D. — martyrdom of Arcadius in Mauretania
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pridie kalendas septembres 12 A.D. — birth of the future emperor Gaius (Caligula) at Antium 40 A.D. — Gaius (Caligula) celebrates an ovatio after his attempted military campaigns in Gaul and Britain 161 A.D. — birth of the future emperor Commodus (and his twin, Titus Aurelius Fulvus Antoninus)
