## TL;DR

Ancient Rome (753 BC - 476 AD Western Empire, -1453 AD Eastern/Byzantine Empire) was one of history's greatest civilizations. From a small city-state to a Mediterranean-spanning empire. Contributions: Roman law (basis of European civil law), Latin language, republican government, engineering (aqueducts, roads, concrete).

## Core Explanation

Timeline: Roman Kingdom (753-509 BC), Republic (509-27 BC), Empire (27 BC-476 AD). Republic: Senate + Consuls + Tribunes — checks and balances. Julius Caesar crosses Rubicon (49 BC), civil war, assassinated (44 BC). Augustus becomes first emperor (27 BC). Pax Romana (27 BC-180 AD): 200 years of relative peace/prosperity. Fall of Western Empire (476 AD) due to internal decay + barbarian invasions.

## Further Reading

- [SPQR: A History of Ancient Rome (Mary Beard)](https://www.liverpooluniversitypress.co.uk/doi/book/10.3828/9781846319177)