Dan Fearnley just nudged me from my stupor with a link to a pdf article from the May/June 2010 Journal of Improbable Research:
… a bit less exciting than it might sound; it’s about catering a 1970s Roman dinner at some big university …
- ludi Cereri (day 8)– games in honour of the grain goddess Ceres, instituted by/before 202 B.C.
- Cerealia — the actual date of the Cerealia is uncertain, but it ‘reenacted’ Ceres’ search for her daughter Proserpina, with apparently all participants and spectators dressed in white.
- 69 A.D. — Vitellius is recognized as emperor by the senate in Rome
… we also note today is the commemoration of an (undated) Roman soldier saint Expeditus