In the process of historical reconstruction of the discoveries of the Roman catacombs between the sixteenth and nineteenth centuries, the available sources are many and of very different types.
It is actually very convenient to know some alternative textual sources which are useful for a correct historical reconstruction of the events. Among these are obviously newspapers, which report the news ‘in real time’ and with exact dates. In the contemporary press, one can find various references to the discoveries of the catacombs, especially in Rome, accompanied by numerous social and cultural information.
The Diario Ordinario -also known as “Chracas” after the family that printed it, and from 1808 as Diario di Roma- was a periodical newsletter printed in Rome from 1716 to 1848. It was published weekly or bi-weekly, usually on Saturdays. The first part of each issue contained all the main news of the city of Rome, especially concerning papal engagements; the second part offered news from correspondents in the main European cities.
The Diario Ordinario is full of detailed information about events in the city of Rome, and it is not uncommon to find references to discoveries made in the catacombs. In particular, it is very useful for tracing extractions of bodies or relics and similar events with both historical-archaeological and religious implications.
Such an interesting and useful source is actually long in consultation. The complete series is available to scholars in the Sala Stampati of the Vatican Library and, recently, in a new online version on the website of the Biblioteca Casanatense in Rome, at this link.
Here is a small sample of how information about the catacombs of Rome can be found in a volume of the Diario Ordinario: