The final centuries of the Roman Empire were marked by crisis and change. By the 3rd century CE, the empire was in decline—its economy weakened, roads crumbled, and the army relied increasingly on foreign recruits. Despite temporary reforms under emperors like Diocletian and Constantine, the empire split into two: the Western Roman Empire, centered in Rome and speaking Latin, and the Eastern Roman Empire, centered in Constantinople (Byzantium) and speaking Greek.
Constantine the Great (early 4th century) dramatically shifted the course of history by legalizing Christianity through the Edict of Milan in 313 CE and founding Constantinople as the new imperial capital. This ushered in the Early Christian period, where Christian themes and spiritual purpose began to shape not only politics but also culture and the arts.
While the Western Roman Empire fell to barbarian invasions in the 5th century, leading to the collapse of trade and urban life, the Eastern (Byzantine) Empire flourished—especially under Emperor Justinian in the 6th century—and preserved Roman traditions alongside Christian values for another 1,000 years.
The pagan Roman worldview had celebrated earthly pleasures, reason, and the material world, best seen in its art and architecture—monuments like the Pantheon reflected this ethos. Built in 125 CE, the Pantheon is a triumph of Roman engineering: a perfect geometric dome, mathematically balanced and grounded in physical reality. It is an expression of clarity, logic, and material power.
In contrast, the Christian worldview focused on eternal salvation, the soul’s journey, and the Last Judgment. This cosmic drama had a beginning, middle, and end—culminating in the Day of Reckoning. As more people turned away from worldly concerns in search of spiritual assurance, Western thought shifted from studying nature and man to contemplating the divine. This transition radically changed the arts.
The Pantheon is solid, measurable, and grounded.
The Hagia Sophia, however, appears almost weightless. Built in the 6th century under Justinian, its dome rests on a ring of windows, creating the illusion that it floats. Light filters through mosaics and marble, giving the space a symbolic, heavenly quality. Structural supports are hidden, walls seem to dissolve—a visual metaphor for divine transcendence.
With the rise of Christianity, the arts turned from the physical to the spiritual, from realism to symbolism. The focus was no longer on celebrating the human body or material perfection, but on expressing the invisible truths of faith. This transformation—from Classical materialism to Christian transcendentalism—would define the Byzantine Empire and the medieval worldview, shaping the future of Western art, architecture, and thought.