ante diem xvi kalendas apriles

• Festival of Mars continues (day 17)
• Liberalia — a festival of general merriment and wine drinking in honour of Liber Pater (another name for Bacchus)
• Agonalia — the rex sacrificulus would offer a ram to various deities
• 45 B.C. — Julius Caesar defeats Pompey’s sons and Labienus at Munda
• 136 A.D. — the future emperor Marcus Aurelius dons the toga virilis
• 180 A.D. — death of Marcus Aurelius at Bononia
• 461 A.D. — death of Saint Patrick (traditional)

idus martias

• festival of Mars continues (day 15)
• festival of Jupiter
• festival/rites in honour of Anna Perenna (Happy New Year!)
• 44 B.C. — murder of Gaius Julius Caesar
• ca. 1st century A.D. — martyrdom of Longinus (the soldier who is said to have pierced Jesus’ side with a spear) in Cappadocia

ante diem iv idus martias

• Festival of Mars (day 12)

ante diem vi idus martias

• Festival of Mars (day 10) …
• 241 B.C. — Romans are victorious against the Carthaginians in the naval battle of Aegusa, bringing the First Punic War to an end
• 15 A.D. — Tiberius becomes pontifex maximus
• ca. 172 A.D. — martyrdom of Alexander in Phrygia
• ca. 258 A.D. — martyrdom of Codratus of Corinth and companions