On Easter (Paschal Table and Letters)

Liber de Paschate

Written in 525, probably in Roma (now Rome, Italy).

His table of Easter dates for 532 to 626, with the letters that explain it; the first use of the years of the Lord.

Treatise · first written in Latin

The second letter, to Boniface and Bonus, is of 526.

Not yet on the site. An English translation of this work exists, but we are not yet sure that it is in the public domain, or its text is not yet made ready. So it is not shown.

How we know the date and place

Date written sure: Dionysius, letter to Petronius: he names the year 525 as the present one
Place written probable: Made at the wish of the papal office, where he worked (Cassiodorus, Institutions 1.23); site: Pleiades https://pleiades.stoa.org/places/423025