Question: Castra of Izbășești was made in this province that was the largest territorial and administrative unit of the empire's territorial possessions outside of Italy until what year

full_context: Document 1: Province of Perugia: The Province of Perugia (Italian: "Provincia di Perugia" ) is the larger of the two provinces in the Umbria region of Italy, comprising two-thirds of both the area and population of the region. Its capital is the city of Perugia. The province covered all of Umbria until 1927, when the province of Terni was carved out of its southern third. The province of Perugia has an area of 6,334 km² covering two-thirds of Umbria, and a total population of about 660,000. There are 59 comunes (Italian: "comuni" ) in the province. The province has numerous tourist attractions, especially artistic and historical ones, and is home to the Lake Trasimeno, the largest lake of Central Italy. It historically the ancestral origin of the Umbri, while later it was a Roman province and then part of the Papal States until the late 19th century.
Document 2: Roman military frontiers and fortifications: Roman military borders and fortifications were part of a grand strategy of territorial defense in the Roman Empire, although this is a matter of debate. By the early 2nd century, the Roman Empire had reached the peak of its territorial expansion and rather than constantly expanding their borders as earlier in the Empire and Republic, the Romans solidified their position by fortifying their strategic position with a series of fortifications and established lines of defense. Historian Adrian Goldsworthy argues that the Romans had reached the natural limits which their military traditions afforded them conquest over and that beyond the borders of the early-to-mid Empire lay peoples whose military traditions made them militarily unconquerable, despite many Roman battle victories. In particular, Goldsworthy argues that the cavalry-based warfare of the Parthians, Sarmatians and Persians presented a major challenge to the expansion of Rome's infantry-based armies.
Document 3: Castra of Izbășești: The Castra of Izbășești was a fort made of earth in the Roman province of Dacia. Erected and abandoned at an uncertain date, the fort was part of the "Limes Transalutanus". Traces of the one time earthwork can be identified on the Corbeasca Hill at Izbășești (commune Stolnici, Romania).
Document 4: Rotbav Archaeological Site: Rotbav “La Pârâuț” is a Bronze Age site in southeastern Transylvania, Romania, located at the southern border of the modern village of Rotbav, in Feldioara Commune, and 20 km north of Braşov, capital of the county by the same name. The settlement of Rotbav is situated upon a high terrace formation above the Olt River. Its importance lies in a long stratigraphy comprising the timespan from the Early Bronze Age to the Bronze Age / Iron Age transition. It is the most extensively researched site of this period in the region.
Document 5: Fort Chiswell Site: Fort Chiswell Site is a historic archaeological site located at Fort Chiswell, Wythe County, Virginia. It is the site of a frontier fort built in 1758 as an outpost during the French and Indian War. The fort was situated at the junction of the Great Trading Path and the Richmond Road, near the New River. The fort fell into disrepair in the 18th century as both the county seat and courthouse were moved from Fort Chiswell to the county seat of Wytheville, 12 miles to the west. The remaining foundations of the Fort and its surrounding buildings were completely covered over during the construction of I-77 in Wythe County during the 1970s. There is a pyramid shaped historical marker of sandstone situated approximately 200 yards west-northwest of the fort's original location next to the old chicken house.
Document 6: Latium: Latium (Latin: "Lătĭŭm" ] ) is the region of central western Italy in which the city of Rome was founded and grew to be the capital city of the Roman Empire. Latium was originally a small triangle of fertile, volcanic soil on which resided the tribe of the Latins or Latians. It was located on the left bank (east and south) of the River Tiber, extending northward to the River Anio (a left-bank tributary of the Tiber) and southeastward to the Pomptina Palus (Pontine Marshes, now the Pontine Fields) as far south as the Circeian promontory. The right bank of the Tiber was occupied by the Etruscan city of Veii, and the other borders were occupied by Italic tribes. Subsequently, Rome defeated Veii and then its Italic neighbours, expanding Latium to the Apennine Mountains in the northeast and to the opposite end of the marsh in the southeast. The modern descendant, the Italian "Regione" of Lazio, also called "Latium" in Latin, and occasionally in modern English, is somewhat larger still, but not as much as double the original Latium.
Document 7: Province: A province is almost always an administrative division, within a country or state. The term derives from the ancient Roman "provincia", which was the major territorial and administrative unit of the Roman Empire's territorial possessions outside Italy. The term province has since been adopted by many countries, and in those with no actual provinces, it has come to mean "outside the capital city". While some provinces were produced artificially by colonial powers, others were formed around local groups with their own ethnic identities. Many have their own powers independent of federal authority, especially in Canada. In other countries, like China, provinces are the creation of central government, with very little autonomy.
Document 8: Roman province: In Ancient Rome, a province (Latin: "provincia", pl. "provinciae") was the basic, and, until the Tetrarchy (293 AD), largest territorial and administrative unit of the empire's territorial possessions outside of Italy. The word "province" in modern English has its origins in the term used by the Romans.
Document 9: Bewcastle Roman Fort: Bewcastle Roman Fort was a Roman fort, built to the north of Hadrian's Wall as an outpost fort and intended for scouting and intelligence. The Roman name for the fort was Fanum Cocidi (as recorded in the Ravenna Cosmography), and means 'The Shrine of Cocidius', a deity worshipped in northern Britain. The remains of the fort are situated at the village of Bewcastle, Cumbria, 7 mi to the north of the Roman fort at Birdoswald, on Hadrian's Wall.
Document 10: Britannia: Britannia was a Roman-Britain province inhabited by the Celtic Britons, Belgae and Picts, encompassing parts of the island south of Caledonia (roughly Scotland) of the geographical region of Great Britain and is the name given to the female personification of the island. It is a term still used to refer to the island. The name is Latin, and derives from the Greek form "Prettanike" or "Brettaniai", which originally designated a collection of islands with individual names, including "Albion" or Great Britain. By the 1st century BC, "Britannia" came to be used for Great Britain specifically. The Romans had initially called the entire provincial island "Britain" and it was only when the island was split into four provinces that two were given the name "Britannia". Although Britain had been designated part of the Roman Empire in 43 AD during the conquest of emperor Claudius it wasn't until the end of the 2nd century that Britannia had been pacified and fully adopted Roman practices.
Document 11: Ancient Roman defensive walls: Defensive walls are a feature of ancient Roman architecture. The Romans generally fortified cities, rather than fortresses, but there are some fortified camps, such as the Saxon Shore forts like Porchester Castle in England. City walls were already significant in Etruscan architecture, and in the struggle for control of Italy under the early Republic many more were built, using different techniques. These included tightly-fitting massive irregular polygonal blocks, shaped to fit exactly in a way reminiscent of later Inca work. The Romans called a simple rampart wall an agger; at this date great height was not necessary. The Servian Wall around Rome was an ambitious project of the early 4th century BC. The wall was up to 10 metres (32.8 ft) in height in places, 3.6 metres (12 ft) wide at its base, 11 km (7 mi) long, and is believed to have had 16 main gates, though many of these are mentioned only from writings, with no other known remains. Some of it had a "fossa" or ditch in front, and an agger behind, and it was enough to deter Hannibal. Later the Aurelian Wall replaced it, enclosing an expanded city, and using more sophisticated designs, with small forts at intervals.
Document 12: Rioni of Rome: A rione of Rome (pl. "rioni") is a traditional administrative division of the city of Rome. "Rione" is an Italian term used since the 14th century to name a district of a town. The term was born in Rome, originating from the administrative divisions of the city. The word comes from the Latin word "regio" (pl. "regiones", meaning region); during the Middle Ages the Latin word became "rejones", from which "rione" comes. Currently, all the rioni are located in Municipio I of Rome.
Document 13: History of the regional distinctions of Spain: For many years the Spanish monarchy and the dictatorships which followed—Primo de Rivera and Franco—maintained the position that Spain was a unified nation, the legacy of the Roman province, Hispania. In reality, Spain (formerly known as the Spains) is and has long been a cluster of different territories with their own systems. Currently, Spain is divided into eighteen autonomous entities, which are themselves composed of fifty provinces. Seven of those eighteen autonomous entities are officially designated as "nationalities", while the rest are defined as regions, historical regions, communities and historical communities. There are many proponents of this confederacy, however it does carry certain historical problems. Just as neither modern nor historical Spain were a single unit, the modern divisions also do not really work in the past. Nonetheless, modern Spain is more easily understood when one first understands the differences which underlie its current divisions.
Document 14: Seventh Fort: The Seventh Fort or VII Fort is a defensive fortification built in Žaliakalnis district of Kaunas, Lithuania, during implementation of the first phase of the construction of the Kaunas Fortress. It is located near the Hospital of Lithuanian University of Health Sciences. This Fort became the last brick fortification of Kaunas Fortress. The Seventh Fort is close to the central defenses and it is located in the rear of Kaunas Fortress. The first owner of fort was the 11th company of Kaunas Fortress Artillery (Imperial Russian Army). In 1915, German Army occupied the Fort without resistance. The Seventh Fort is one of the best surviving examples of a two-rampart fort, showing the typical design of a 19th-century Russian brick fort. Many authentic elements survive, such as iron window frames, ammunition warehouse gate fragments. During the Fort's restoration, a number of authentic interior details (interior decoration, paving, fittings of ammunition storage doors and gate) were found.
Document 15: Western Roman Empire: In historiography, the Western Roman Empire consists of the western provinces of the Roman Empire at any one time during which they were administered by a separate independent Imperial court, coequal with (or only nominally subordinate to) that administering the eastern half. Both "Western Roman Empire" and "Eastern Roman Empire" (or "Byzantine Empire") are modern terms describing "de facto" independent entities; however, at no point did the Romans consider the Empire split into two, but rather considered it a single state governed by two separate Imperial courts out of administrative expediency. The view that the Empire was impossible to govern by one emperor was established by Diocletian following the disastrous civil wars and disintegration of the Crisis of the 3rd century, and was instituted in Roman law by his introduction of the Tetrarchy in AD 285, a form of government which was legally to endure in one form or another for centuries. The Western Court was periodically abolished and recreated for the next two centuries until final abolition by Zeno in 480, by which time there was little effective central control left in the area legally administered by the Western Court.
ground_truth: 293 AD