Et ty, Q?

https://en.m.wikipedia.org/wiki/Ides_of_March

“The Ides of March (/aɪdz/; Latin: Idus Martiae, Late Latin: Idus Martii)[1] is a day on the Roman calendar that corresponds to 15 March. It was marked by several religious observances and was notable for the Romans as a deadline for settling debts.”