Vocabula Mira: “Bisextilis” and “Kalendae Graecae”

Last week’s Vocabula Mira post was about the intercalary month called “Mercedonius”, which the Romans irregularly added after February to bring their very ancient lunar calendar into line with the solar year. This month was abolished in the reform instituted by Julius Caesar in 46 B.C, which established a regular leap day every four years; […]