TDIAH
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ante diem xii kalendas septembres ¶ Consualia — festival involving games/chariot races in honour of Consus and other assorted divinities; one of the races apparently featured chariots pulled by mules ¶ 753 B.C.(?) – rape of the Sabine women (which traditionally happened during the celebration of the above)
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ante diem xiii kalendas septembres ¶ 2 A.D. — death of Augustus’ grandson/adoptive son Lucius Caesar in Massalia ¶ 14 A.D. — execution/death of Agrippa Postumus (not sure of the source for that)
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ante diem xv kalendas septembres ¶ 29 B.C. — dedication of the Temple of Divus Julius (and associated rites thereafter) ¶ 2nd century A.D. — martyrdom of Florus and Laurus in Illyria ¶ 328 A.D. — death of Helena, mother of Constantine
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ante diem xvi kalendas septembres ¶ Portunalia — a festival in honour of the Roman god of harbours ¶ rites in honour of Janus at the Theatre of Marcellus ¶ ca 250 A.D. — martyrdom of Myron ¶ ca 270 A.D. — martyrdom of Paul and Juliana
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ante diem xvii kalendas septembres between 298 and 311 A.D. — martyrdom of St Diomedes (no, it didn’t take 13 years to do it)
