ante diem iv nonas maias
- 11 B.C. — dedication of the Theatre of Marcellus
- ca. 304 A.D. — martyrdom of Florian in what would become Austria
- ca. 304 A.D. — martydom of Pelagia at Tarsus
- 1406 — death of Coluccio Salutati (humanist and proto-Classicist)