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| Regio I | |
|---|---|
| Name | Regio I |
| Settlement type | Administrative region (ancient) |
| Subdivision type | Empire |
| Subdivision name | Roman Empire |
| Established title | Established |
| Established date | Augustan reorganization (c. 7 AD) |
| Seat type | Principal city |
| Seat | Rome |
| Population density km2 | auto |
Regio I
Regio I was an administrative division created during the Augustan reorganization of the Roman Empire and persisted as a recognized unit through the Imperial period. It played a role in the urban framework associated with Rome and features prominently in sources such as the Regionary Catalogues and the writings of Pliny the Elder and Dio Cassius. The region's built environment, civic institutions, and topography are documented by archaeologists who compare epigraphic evidence from sites linked to Trajan, Hadrian, Marcus Aurelius, and other emperors.
Regio I comprised a compact sector within the imperial capital noted in ancient lists compiled under Augustus and later chroniclers like Festus (Roman antiquarian) and the anonymous compilers of the Notitia Urbis Romae. It appears alongside neighboring regions associated with landmarks such as the Forum Romanum, the Palatine Hill, the Capitoline Hill, and infrastructure projects commissioned by emperors including Nero, Vespasian, and Domitian. Literary and epigraphic sources from authors such as Livy, Suetonius, Tacitus, and Cassius Dio contribute to reconstructing its civic profile.
Topographic descriptions in ancient itineraries and modern reconstructions place this region contiguous with major urban features that include the Vicus Tuscus, the Clivus Capitolinus, the Velabrum, and approaches to the Roman Forum. Boundaries in late antique documents refer to streets and monuments erected during reigns of Augustus, Tiberius, and Claudius, with adjacent regions containing the Circus Maximus, the Palatine Stadium, and the precincts of temples such as Temple of Saturn, Temple of Castor and Pollux, and Temple of Concord. Archaeologists correlate these descriptions with finds from excavations near the Lapis Niger, the Arch of Titus, and the Arch of Septimius Severus.
The regio evolved after administrative reforms initiated by Augustus that divided Rome into numbered districts recorded in the Notitia and the Curiosum. It absorbed building campaigns of successive rulers—Augustus’s fora projects, Nero’s urban renewal after the Great Fire, and Trajan’s public works—reflecting shifts evident in accounts by Pliny the Elder and Cassius Dio. During crises such as the Year of the Four Emperors and the Crisis of the Third Century, inscriptions and coinage from mints under Vespasian, Aurelian, and Diocletian show administrative continuity and periodic redefinition of urban services.
Administratively this sector was managed by magistrates and local curators whose names survive in inscriptions preserved on milestones, dedication plaques, and tombstones referencing officials appointed by Augustus, Trajan, and later emperors like Constantine I. Infrastructure included aqueduct-fed baths associated with the works of Agrippa, bridges spanning channels linked to the Tiber River, and sewer systems related to renovations by Cloaca Maxima-projects attested in texts by Frontinus. Street nomenclature and municipal divisions recorded in the Curiosum and Notitia align with epigraphic evidence honoring benefactors such as members of the Julio-Claudian dynasty and senatorial patrons referenced by Pliny the Younger.
Economic activity centered on trade routes accessing the Forum Boarium, markets described by Varro and Columella, and workshops whose products appear in trade ledgers and commercial inscriptions referencing guilds like the collegia, export commodities recorded in port lists for Ostia and inland distribution networks tied to cargos referenced in Cassius Dio and Livy. Coin hoards from periods under Hadrian and Septimius Severus indicate monetary circulation; commercial regulation edicts by Diocletian and laws recorded in the Codex Theodosianus give context to fiscal administration affecting local merchants.
Monuments catalogued in imperial inventories and surviving in situ include temples, arches, and basilicas connected to patrons such as Augustus, Vespasian, Domitian, and Septimius Severus. Notable nearby structures referenced in literary and epigraphic sources comprise the Temple of Saturn, the Basilica Aemilia, the Curia Julia, and monumental arches like the Arch of Titus and the Arch of Septimius Severus. Architectural styles reflect influences from provinces administered by Hadrian and building programs co-sponsored by families like the Aemilii and Claudians.
Excavations conducted by teams associated with institutions such as the British School at Rome, the École française de Rome, and the Soprintendenza Speciale per i Beni Archeologici di Roma have recovered artifacts including inscriptions, sculptural fragments, coins, and pavement mosaics. Finds linked to votive dedications and funerary monuments cite individuals attested in corpus projects like the Corpus Inscriptionum Latinarum and complement accounts by Pliny the Elder, Tacitus, and travelers such as Piranesi. Stratigraphic data illuminate phases from Republican to Late Antique strata and correlate with restoration programs under Justin I and urban modifications during the Byzantine reconquest.
The region’s monuments and urban fabric influenced Renaissance and Neoclassical artists and architects—figures such as Palladio, Michelangelo, Giovanni Battista Piranesi, and Andrea Palladio studied its ruins—while antiquarians like Flavio Biondo and Onofrio Panvinio recorded its topography. Its archaeological record informs modern scholarship by institutions including University of Rome La Sapienza, Harvard University, and the University of Oxford and continues to shape heritage management policies promoted by the European Union and UNESCO-associated programs.
Category:Ancient Roman regions