It is Classical antiquity a broad term for a long period of cultural history centered on the Mediterranean Sea, which begins roughly with the earliest-recorded Greek poetry of Homer (7th century BCE), and continues through the rise of Christianity and the fall of the Western Roman Empire (5th century CE), ending in the dissolution of classical culture with the close of Late Antiquity.

The civilization of ancient Rome originated in the 8th or 9th century BC, when northern tribes migrated to the Italian peninsula to settle around the River Tiber. The Roman Empire ( Imperium Romanum) is the Ancient Roman realm in the centuries following its reorganization under the leadership of Augustus in the late 1st century BC. After the Tetrarchy of Dioceletian.which had left the Empire with five rulers: four Augusti (Galerius, Constantine, Severus and Maxentius) and a Caesar (Maximinus). The tribes of the west were the Rhine and the Danube and as far as in Britannia, Armenia, Parthia, and Iudaea. Classical antiquity for a long period of cultural history centered on the Mediterranean Sea since the late Mycenae period and the late Hittite Old Kingdom; the Iron Age separated the Iberian Peninsula from Phoenician Carthage.

The an ancient Roman wall-Wall of Antonius, extending across North Britain from the Firth of Forth to the Firth of Clyde in the 140s. By 210 the Caledonians had re-formed their alliance with the Maeatae. The Romans referred to Scotland as Caledonia, a name derived from the Pictish tribe Caledonii, which fought Agricola at Mons Graupius in 84 AD. The Votadini and Picts were a people of the Iron Age.

Constantine I , an Augustus of (Julio-Claudian) refounded the Roman Empire as Nova Roma where Byzantium became the new city of Constantinople. After Constantinople was made its capital and the Western parts were lost, the Eastern part continued as the Eastern Roman Empire, which is now more often referred to as the Byzantine Empire. The Constantinian shift began in 312. But for the first thousand years of her history the Church was essentially one. Five historic Patriarchal centers--Jerusalem; Antioch, Rome, Alexandria, and Constantinople. Those early conflicts were sometimes caused by heresies, held in the capital of the Eastern empire (Arianism, 335-381; Monotheletism, 533-680; Iconoclasm, 723-787; 815-842) and rightfully rejected by Rome. Sometimes Rome and Constantinople differed in their attitude in the field of eccliastical oikonomia (the "Neo-Nicean" position, inherited from the Cappadocian Fathers, 381-ca. 400; the attitude to be adopted towards the Henotikon, also referred to as the "Acacian schism", 482-518), and communication was broken on those grounds.

The Damnonii were a pre-Caroline, Brythonic tribe in the area around modern Glasgow and Strathclyde in west central Scotland, whose territory included the modern district of Dumbarton. From the 500s, Celtic areas in the northwest corners of Gaul and Hispania may have received new Britons during Sub-Roman times. These settlers made their presence felt in the naming of the westernmost, Atlantic-facing provinces of Armorica, Cornouaille, and Domnonea (Devon). These settlements are associated with leaders like Saint Samson of Dol and Pol Aurelian, among the founder saints of Brittany.

To the south of Caledonia, the Picts, Scottish invaders from Ireland had established the kingdom of Scots Dalriada in the 5th century. The province of Britannia was a territory of the Votadini. To what extent the native population was replaced during the 600s is as unknown as their influence if at all, to druidry and the four-fifths. But Aedan mac Gabrain, a descendent of the Uí Neill of North Ireland, established the kingdom of Scottish Dalraida. He and Saint Columba were good friends. Sub-Roman Britain in the culture of late antiquity is known to other terms such as the Brythonic Age when Southern Ireland accepts Roman order of Christianity and Adamnan of Iona convinces northern Irish church to accept Roman order of Christianity. The city of Newcastle was founded by the Normans in 1080 to control the region by holding the strategically important crossing point of the river Tyne.

By the early Caroline 7th century there was a unified Pictish kingdom north of a line from the Clyde to the Forth rivers whose presence in Argyll preceded Scots Dalriada until the departure of Rome's legions. Asturias

The West-Vikings made Northumbria (Bernicia) during late antiquity, while annexing Orkney and Shetland to Norway, buccaneering expeditions on the coasts and the isles, with a lucrative trade at Jórvík (York) that extended to the farthest reaches of Europe. The Dalriadic Scots established a footing in the islands towards the 6th-9th century when Kenneth MacAlpin usurped the dual throne as King of Picts and Scots in 845 AD, he called the crown Rex Pictorum or "King of Picts." However, by the beginning of the 10th century, his descendants changed to Rex Alban and Middle Irish mormaer. Pictland in the west, the Britons and Angles in the south and the Vikings in the north.

---