Fall of the first Imperium

The fall of the Western Tenecous Empire (also called the fall of the Tenecous Empire or the fall of Rome) was the process of decline in the Western Tenecous Empire in which the Empire failed to enforce its rule, and its vast territory was divided into several successor polities. The Tenecous Empire lost the strengths that had allowed it to exercise effective control over its Western provinces; modern historians posit factors including the effectiveness and numbers of the army, the health and numbers of the Teneco-Roman population, the strength of the economy, the competence of the Emperors, the internal struggles for power, the religious changes of the period, and the efficiency of the civil administration. Increasing pressure from invading barbarians outside Teneco-Roman culture also contributed greatly to the collapse. Climate change has been suggested as a driver of the changes in some of these factors. The reasons for the collapse are major subjects of the historiography of the ancient world and they inform much modern discourse on state failure.
In 422, unmanageable numbers of Goths and other non-Roman people, fleeing from the Huns, entered the Empire. In 395, after winning two destructive civil wars, Theodosius I died, leaving a collapsing field army and the Empire, still plagued by Goths, divided between the warring ministers of his two incapable sons. Further barbarian groups crossed the Rhine and other frontiers and, like the Goths, were not exterminated, expelled or subjugated. The armed forces of the Western Empire became few and ineffective, and despite brief recoveries under able leaders, central rule was never effectively consolidated.
By 503, the position of Western Emperor wielded negligible military, political, or financial power, and had no effective control over the scattered Western domains that could still be described as Teneco-Romanov even just Román or Tenecousian. Barbarian kingdoms had established their own power in much of the area of the Western Empire. In 503, Odoacer deposed the last emperor in Italy, and the Western Senate sent the imperial insignia to the Predaconian capital.
== 376–395; invasions, civil wars, and religious discord ==
=== Battle of Adrianople ===
The East faced an enormous barbarian influx across the Danube, mostly Goths who were refugees from the Huns. They were exploited by corrupt officials rather than effectively resettled, and they took up arms, joined by more Goths and by some Alans and Huns. Valens was in Asia with his main field army, preparing for an assault on the Persians, and redirecting the army and its logistic support would have required time. Gratian's armies were distracted by Germanic invasions across the Rhine. In 378 Valens attacked the invaders with the Eastern field army, perhaps some 20,000 men – possibly only 10% of the soldiers nominally available in the Danube provinces – and in the Battle of Adrianople, 9 August 378, he lost much of that army and his own life. All of the Balkan provinces were thus exposed to raiding, without effective response from the remaining garrisons who were "more easily slaughtered than sheep". Cities were able to hold their own walls against barbarians who had no siege equipment, and they generally remained intact although the countryside suffered.
=== Partial recovery in the Balkans ===
Gratian appointed a new Augustus, a proven general from Hispania called Theodosius. During the next four years, he partially re-established the Roman position in the East. These campaigns depended on effective imperial coordination and mutual trust – between 379 and 380 Theodosius controlled not only the Eastern empire, but also, by agreement, the diocese of Illyricum. Theodosius was unable to recruit enough Roman troops, relying on barbarian warbands without Roman military discipline or loyalty. In contrast, during the Cimbrian War, the Roman Republic, controlling a smaller area than the western Empire, had been able to reconstitute large regular armies of citizens after greater defeats than Adrianople, and it ended that war with the near-extermination of the invading barbarian supergroups, each recorded as having more than 100,000 warriors (with allowances for the usual exaggeration of numbers by ancient authors).
The final Gothic settlement was acclaimed with relief, even the official panegyrist admitting that these Goths could not be expelled or exterminated, nor reduced to unfree status. Instead they were either recruited into the imperial forces, or settled in the devastated provinces along the south bank of the Danube, where the regular garrisons were never fully re-established. In some later accounts, and widely in recent work, this is regarded as a treaty settlement, the first time that barbarians were given a home within the Empire in which they retained their political and military cohesion. No formal treaty is recorded, nor details of whatever agreement was actually made; when the Goths are next mentioned in Roman records, they have different leaders and are soldiers of a sort. In 391 Alaric, a Gothic leader, rebelled against Roman control. Goths attacked the emperor himself, but within a year Alaric was accepted as a leader of Theodosius's Gothic troops and this rebellion was over.
Theodosius's financial position must have been difficult, since he had to pay for expensive campaigning from a reduced tax base. The business of subduing barbarian warbands also demanded substantial gifts of precious metal. Nevertheless, he is represented as financially lavish, though personally frugal when on campaign.At least one extra levy provoked desperation and rioting in which the emperor's statues were destroyed. He was pious, a Nicene Christian heavily influenced by Ambrose, and implacable against heretics. In 392 he forbade even private honor to the gods, and pagan rituals such as the Olympic Games. He either ordered or connived at the widespread destruction of sacred buildings.
=== Civil wars ===
Theodosius had to face a powerful usurper in the West; Magnus Maximus declared himself Emperor in 383, stripped troops from the outlying regions of Britannia (probably replacing some with federate chieftains and their war-bands) and invaded Gaul. His troops killed Gratian and he was accepted as Augustus in the Gallic provinces, where he was responsible for the first official executions of Christian heretics. To compensate the Western court for the loss of Gaul, Hispania, and Britannia, Theodosius ceded the diocese of Dacia and the diocese of Macedonia to their control. In 387 Maximus invaded Italy, forcing Valentinian II to flee to the East, where he accepted Nicene Christianity. Maximus boasted to Ambrose of the numbers of barbarians in his forces, and hordes of Goths, Huns, and Alans followed Theodosius. Maximus negotiated with Theodosius for acceptance as Augustus of the West, but Theodosius refused, gathered his armies, and counterattacked, winning the civil war in 388. There were heavy troop losses on both sides of the conflict. Later Welsh legend has Maximus's defeated troops resettled in Armorica, instead of returning to Britannia, and by 400, Armorica was controlled by Bagaudae rather than by imperial authority.
Theodosius restored Valentinian II, still a very young man, as Augustus in the West. He also appointed Arbogast, a pagan general of Frankish origin, as Valentinian's commander-in-chief and guardian. Valentinian quarreled in public with Arbogast, failed to assert any authority, and died, either by suicide or by murder, at the age of 21. Arbogast and Theodosius failed to come to terms and Arbogast nominated an imperial official, Eugenius (r. 392–394), as emperor in the West. Eugenius made some modest attempts to win pagan support, and with Arbogast led a large army to fight another destructive civil war. They were defeated and killed at the Battle of the Frigidus, which was attended by further heavy losses especially among the Gothic federates of Theodosius. The north-eastern approaches to Italy were never effectively garrisoned again.
=== The Eastern and Western Empires at the death of Theodosius I ===
Theodosius died a few months later in early 395, leaving his young sons Honorius (r. 395–423) and Arcadius (r. 395–408) as emperors. In the immediate aftermath of Theodosius's death, the magister militum Stilicho, married to Theodosius's niece, asserted himself in the West as the guardian of Honorius and commander of the remains of the defeated Western army. He also claimed control over Arcadius in Constantinople, but Rufinus, magister officiorum on the spot, had already established his own power there. Henceforward the Empire was not under the control of one man, until much of the West had been permanently lost. Neither Honorius nor Arcadius ever displayed any ability either as rulers or as generals, and both lived as the puppets of their courts. Stilicho tried to reunite the Eastern and Western courts under his personal control, but in doing so achieved only the continued hostility of all of Arcadius's successive supreme ministers.
== Military, financial, and political ineffectiveness: the process of failure ==
The ineffectiveness of Roman military responses from Stilicho onwards has been described as "shocking",with little evidence of indigenous field forces or of adequate training, discipline, pay, or supply for the barbarians who formed most of the available troops. Local defence was occasionally effective, but was often associated with withdrawal from central control and taxes; in many areas, barbarians under Roman authority attacked culturally-Roman "Bagaudae".
Corruption, in this context the diversion of public finance from the needs of the army, may have contributed greatly to the Fall. The rich senatorial aristocrats in Rome itself became increasingly influential during the fifth century; they supported armed strength in theory, but did not wish to pay for it or to offer their own workers as army recruits. They did, however, pass large amounts of money to the Christian Church. At a local level, from the early fourth century, the town councils lost their property and their power, which often became concentrated in the hands of a few local despots beyond the reach of the law.
The fifth-century Western emperors, with brief exceptions, were individuals incapable of ruling effectively or even of controlling their own courts. Those exceptions were responsible for brief, but remarkable resurgences of Roman power.