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The Church Fathers · c. 700–750
The First Roman Ordo
Ordo Romanus I
Anonymous
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What it is
A stage-by-stage description of a papal mass in Rome — the procession, the vesting, who carries what, where each official stands.
Why it lasted
The earliest detailed account of the Roman rite in practice, and the document Frankish reformers used to reshape worship north of the Alps.
Where to read it
Public domain and free to read in full, though not held here. The archives below have it.
These open a search on each archive rather than a direct link, which is the honest way to point at an edition nobody here has checked line by line.
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