ante diem v kalendas Iunias

• 585 B.C. — solar eclipse predicted by Thales of Miletus occurs during the battle of the Halys (another possible date)

• 20 A.D. — Drusus "Minor", the son of the emperor Tiberius, celebrates an ovatio for his victories in Illyricum

• ca 250 A.D. — martyrdom of Heliconis