The Roman Empire
The Roman Empire was one of the largest and most influential empires in world history, beginning in 27 BCE under Emperor Augustus and lasting in its western form until 476 CE.
What one civil war ended, another began: Rome's transition from republic to empire was forged in decades of internal conflict before a single ruler finally emerged to hold it together.
From Republic to Empire
The empire emerged from the Roman Republic following a series of devastating civil wars, with Augustus (formerly known as Octavian) becoming the first Roman emperor in 27 BCE after defeating his rival Mark Antony, ending centuries of republican governance.
The Pax Romana
The empire's first two centuries are often referred to as the Pax Romana, or "Roman Peace," a period of relative stability and prosperity during which the empire expanded to its greatest territorial extent, spanning from Britain to the Middle East and North Africa.
Engineering and Governance
Roman achievements in engineering left a lasting physical legacy, including extensive road networks that connected the empire, sophisticated aqueducts that supplied cities with fresh water, and monumental architecture like the Colosseum. Roman legal principles also formed the basis of many modern legal systems.
Decline in the West
The western half of the empire gradually weakened due to economic troubles, political instability, and increasing pressure from migrating and invading peoples, ultimately falling in 476 CE when the last Western Roman emperor was deposed.
Survival in the East
While the western empire collapsed, its eastern half, known as the Byzantine Empire and centered on Constantinople, continued for nearly another thousand years, preserving and transmitting Roman law, Greek philosophy, and Christian theology until its own fall in 1453.