noun, masculine/feminine/e.fe.me.ʁid/plural: éphémérides
block or tear-off calendar; the events that took place on a particular date in previous years; ephemeris (table giving the apparent position of celestial bodies throughout the year)
Borrowed from the Latin ephēmeris, itself a borrowing from the Ancient Greek ἐφημερῐ́ς (ephēmerĭ́s).