509 BCEReputable sourceWell documented
The Roman Republic
On the timeline · around 509 BCE · Ancient Roots
What happened
According to tradition, in 509 BCE the Romans overthrew their last king and founded a republic — a state governed not by a monarch but by elected officials and assemblies of citizens. Power was shared among consuls, a Senate, and popular assemblies, with elaborate checks to prevent any one man from seizing absolute power.
Why it matters
The Roman Republic pioneered representative government, separation of powers, and the rule of law — ideas that, revived and studied centuries later, directly shaped the constitutions of modern democracies like the United States.
Sources
- World History Encyclopedia. Roman Republic · Reputable source
Related timelines
- Ancient Rome → — The republic that inspired modern constitutions