The format used by Polemius for the most part followed the conventions of Roman calendars, with days arranged in parallel columns under the name of the month, and each day noted on a separate line. Column 1 numbers the days of the month. Column 2 identifies any special days, not only traditional Roman and Christian holidays, but also the birthdays of emperors, and days when
consuls and
praetors took office. Column 3 gives weather conditions;
Columella's 1st-century treatise on agriculture may have influenced the inclusion of references to weather. Polemius also provided information from his own research, such as the birthdays of
Cicero,
Vergil, and a Faustina who was the divinized wife
(diva) of an
Antonine emperor. Because the Roman calendar had traditionally served a didactic purpose, the
laterculus of Polemius provided several other lists and tables under the month-by-month
chronographic presentation: • emperors and usurpers; • the
Roman provinces; • animal names, spread out over two months; • a table for
calculating the date of
Easter and the
phases of the moon (not extant); • buildings and
topographical features of Rome; •
fabulae poeticae ("poets' tales"); • a
breviary of Roman history; • "a register of animal voices"; • weights and measures; •
meters of poetry (not extant); • a survey of philosophical sects (not extant). Lost portions are known only from the introductory synopsis. For each month, the calendar also presents the equivalent Hebrew, Egyptian, Athenian, and Greek names. ==List of Provinces==