| Resculum | |
| Alt Names: | Rucconium |
| Known As: |
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| Built During Reign Of: | Trajan |
| Founded: | 2nd century AD |
| Abandoned: | c. 4th-5th century AD |
| Attested By: | Tabula Peutingeriana |
| Robust Struct Material: | Stone |
| Robust Struct Dim1: | 122 |
| Robust Struct Dim2: | 213 |
| Robust Struct Area: | 2.6 |
| Weak Struct Material: | Wood and earth |
| Weak Struct Dim1: | 130 |
| Weak Struct Dim2: | 203 |
| Weak Struct Area: | 2.6 |
| Cohorts: |
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| Province: | Dacia |
| Admin Unit 1: | Dacia Superior |
| Admin Unit 2: | Dacia Porolissensis |
| Limes: | Porolissensis |
| Links: | |
| Coordinates: | 46.8857°N 22.8846°W |
| Altitude: | c. 527 |
| Map: | Romania |
| Place Name: | Grădiște |
| Location Town: | Bologa |
| Location County: | Cluj |
| Ref:Ro:Lmi: | CJ-I-s-A-06975 [3] |
| Ref:Ro:Ran: | 59069.01 |
| Condition: | Ruined |
| Excavations: |
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| Archaeologists: |
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Resculum or Rucconium[4] was an ancient Roman fort in the Roman province of Dacia. The ruins are located near the village of Bologa, Cluj county, at the confluence of river Sebeș with river Criș, on the promontory of a hill. A vicus developed close to the castrum.[5] An inscription cited by Károly Torma but now lost named the associated civil settlement as Anartorum.[6]
It was the southwestern start point of Limes Porolissensis, from which a road led to Porolissum. An advanced outpost, 30km down the Crișul Repede valley, at Negreni, was connected to the fort.
Three phases are know for the castra:
1. In the early phase, right after Trajan's Dacian Wars, the castrum was made of earth and timber. Initially Cohors I Ulpia Brittonum miliaria equitata was stationed there but it was later moved to Porolissum and replaced by Cohors II Hispanorum (renamed Cohors II Hispanorum scutata Cyrenaica equitata).
2. The fort was enlarged a couple of decades later as the presence of Cohors I Aelia Gaesatorum miliaria is also attested at the site.
3. At the beginning of the 3rd century it was rebuilt from stone [7] and reached a size of 133,30x213m. A horreum is attested at the site with a second, smaller logistic building of unknown function also present within the walls. It also manned numerous ancillary structures connected to it such as watchtowers and fortlets.