ante diem xvii kalendas maias

• ludi Cereri continue (day 4)– games in honour of the grain goddess Ceres, instituted by/before 202 B.C.
• Fordicidia — an obvious fertility ritual in which a pregnant cow would be sacrificed to the earth goddess Tellus
• 421 B.C. — Peace of Nikias brings the first phase of the Peloponnesian war (a.k.a. the Archidamian War) to an end (by one reckoning)
• 69 A.D. — the forces of emperor wannabe Vitellius defeat the forces of emperor wannabe Otho
• 251 A.D. — Martyrdom of Maximus and Olympiades in Persia

ante diem xviii kalendas maias

• ludi Cereri continue (day 3) — games in honour of the grain goddess Ceres, instituted by/before 202 B.C.
• 69 A.D. — first battle at Bedriacum; the forces of emperor wannabe Vitellius eventually would defeat the forces of emperor wannabe Otho
• 73 A.D. — mass suicide at Masada (?)
• 195 A.D. — Julia Domna, wife of the emperor Septimius Severus, is given the title mater castrorum (“mother of the camp”)

ante diem v idus apriles

• ludi Megalesia continue (day 6)
• 193 A.D. — Septimius Severus given the rank of Augustus

ante diem vi idus apriles

• ludi Megalensia continue (day 5)
• 217 A.D. — murder of the emperor M. Aurelius Antoninus (Caracalla)
• 1898 — Birth of Maurice Bowra (The Greek Experience)
• 1979 — death of E.R. Dodds (The Greeks and the Irrational)

ante diem vii idus apriles

• ludi Megalesia (day 4)
• 30 A.D. — crucifixion of Jesus (one reckoning according to the astronomical estimates)
• 303 A.D. — martyrdom of Calliopus at Pompeiopolis
• 310 A.D. — martyrdom of Peleusius at Alexandria