Greek Democracy vs Roman Republic: Key Differences

The key difference between Greek democracy and the Roman Republic is who actually made decisions. In Athenian democracy, adult male citizens voted directly on laws, war and peace in a mass Assembly, and many officials were chosen by lottery. In the Roman Republic, citizens elected magistrates and voted in assemblies, but power was balanced between elected officials, an aristocratic Senate and popular institutions, and the system was weighted heavily toward the wealthy.

Athenian democracy vs Roman Republic: comparison table

Feature	Athenian democracy	Roman Republic
Type of system	Direct democracy	Representative, “mixed” constitution
Main dates	From the reforms of Cleisthenes (508/507 BC) to 322 BC, with interruptions	Traditionally 509 BC to 27 BC
Main lawmaking body	The Assembly (ekklesia), open to all adult male citizens	Several citizen assemblies, voting on proposals put by magistrates
Leading officials	Mostly chosen by lot for one year; generals (strategoi) elected	Elected magistrates, led by two consuls each year
Council	Council of 500 (boule), chosen by lot, prepared business for the Assembly	The Senate, an advisory body of former magistrates that served for life
Courts	Large citizen juries chosen by lot	Magistrates and, later, standing jury courts drawn from the elite
Voting	One citizen, one vote, usually by show of hands	Voting by groups (centuries or tribes); each group cast one vote
Protection of ordinary citizens	Mass participation itself; ostracism and public scrutiny of officials	Tribunes of the plebs with a veto over magistrates’ actions
How it ended	Macedonian domination after 322 BC	Civil wars and the rise of Augustus as emperor

How Athenian democracy worked

Athens was not the only Greek democracy, but it is by far the best documented, so it is the usual point of comparison. The system took shape after Cleisthenes reorganised the citizen body into ten new tribes in 508/507 BC, and it was extended in the 460s and 450s BC, when the powers of the aristocratic council of the Areopagus were reduced.

The Assembly

The heart of the system was the Assembly, or ekklesia. Any adult male citizen could attend, speak and vote. It met regularly on the Pnyx hill in Athens and decided questions of war and peace, alliances, laws, finance and the election of certain officials. Votes were normally taken by a show of hands. In the 4th century BC citizens were paid for attending, which helped poorer men take part.

The Council of 500

The Council (boule) consisted of 500 citizens, fifty from each of the ten tribes, chosen by lot for a one-year term. A citizen could serve only twice in his lifetime. The Council prepared the agenda for the Assembly and oversaw the day-to-day running of the city. Each tribe’s fifty members took turns acting as a standing committee for part of the year.

Sortition: government by lottery

Athenians regarded election as somewhat aristocratic, because it favoured the famous and wealthy. Most public offices were therefore filled by lot from among volunteers. This gave ordinary citizens a realistic chance of holding office. The main exception was military command: the ten generals (strategoi) were elected and could be re-elected, which is why a leader like Pericles could hold influence for many years.

The courts

Athenian courts used very large juries, often hundreds of citizens, selected by lot from a pool of volunteers. There were no professional judges or public prosecutors; citizens brought cases and argued them in person. Jurors were paid, a measure associated with Pericles.

Ostracism

Once a year the Assembly could decide to hold an ostracism. If it did, citizens scratched a name on a pottery fragment (ostrakon), and if enough votes were cast, the man with the most was exiled for ten years without losing his property. It was a device to remove a politician thought to be growing too powerful, and it fell out of use toward the end of the 5th century BC.

Who counted as a citizen

Athenian democracy was radical in its participation but narrow in its membership. Only free adult men of Athenian descent were citizens; after a law of 451/450 BC, both parents had to be Athenian. Women, enslaved people and resident foreigners (metics) were excluded. Historians estimate the citizen body at a few tens of thousands of men out of a much larger total population.

How the Roman Republic worked

According to Roman tradition, the Republic began in 509 BC, when the last king was expelled. Romans built a system designed above all to prevent any one man from holding kingly power again. It developed over centuries, especially through the long “Conflict of the Orders” between patricians and plebeians.

The consuls and other magistrates

Two consuls were elected each year. They commanded armies, presided over the Senate and assemblies, and held supreme executive authority (imperium). Each could block the other. Below them were other elected magistrates:

• Quaestors handled finance and served as assistants to commanders.
• Aediles looked after public buildings, markets and games.
• Praetors administered justice and could command armies.
• Censors, elected periodically, conducted the census and revised the list of senators.

In an emergency, a dictator could be appointed for up to six months. The office was meant to be temporary, which made its later use by Sulla and Caesar so significant.

The cursus honorum

Ambitious Romans climbed a recognised career ladder known as the cursus honorum, from quaestor through praetor to consul, with minimum ages and intervals that were formalised over time. Because office was unpaid and campaigning was expensive, the ladder favoured wealthy families, and a small group of noble families supplied many of the consuls.

The Senate

The Senate was not, strictly speaking, a lawmaking body. It advised magistrates, but in practice its advice carried enormous weight. It managed foreign policy, finances and provincial commands. Its members were mostly former magistrates who sat for life, so the Senate represented accumulated experience and aristocratic prestige.

The assemblies

Roman citizens voted in assemblies, but not as equal individuals. In the Centuriate Assembly, which elected consuls and praetors and declared war, citizens were divided into voting units called centuries according to wealth, and the wealthiest classes controlled a majority of the units. In the Tribal Assembly and the Plebeian Council, citizens voted by tribe, a structure less tied to wealth but still uneven, since rural tribes were often represented by those who could afford to travel to Rome. Votes were cast in person in the city. Assemblies could only vote yes or no on proposals put by a presiding magistrate; ordinary citizens could not propose laws or amend them from the floor.

Tribunes of the plebs

The tribunes, ten each year, were elected by the plebeians to protect them. Their persons were sacrosanct, and they could veto the actions of magistrates and other tribunes. Over time tribunes also proposed legislation to the Plebeian Council, whose resolutions became binding on all citizens after 287 BC. Tribunes became powerful political actors, as the careers of Tiberius and Gaius Gracchus later showed.

Polybius and the mixed constitution

The Greek historian Polybius, writing in the 2nd century BC, argued that Rome’s strength lay in its mixed constitution. In his analysis, the consuls represented a monarchic element, the Senate an aristocratic element and the assemblies a democratic element, each checking the others. Modern historians debate how accurately this describes Roman practice, but the idea had a long afterlife in political thought.

Who could vote?

Both systems excluded women and enslaved people. Beyond that they differed sharply:

• Athens gave every adult male citizen an equal, direct vote and a real chance at office, but it guarded citizenship tightly.
• Rome gave every adult male citizen a vote, but the weight of that vote depended on wealth and on which tribe or century he belonged to. On the other hand, Rome expanded citizenship much more generously, granting it to allies, colonists and freed slaves of citizens, and to most free Italians after the Social War of 91 to 88 BC.

In short, Athens was more equal but exclusive, while Rome was more inclusive but hierarchical.

Direct participation vs checks and balances

Athens trusted the judgment of the citizen body, and its institutions were built to maximise participation and prevent the rise of a professional political class. Its critics, including Plato and the historian Thucydides, worried that the Assembly could be swayed by persuasive speakers and make rash decisions, such as the disastrous Sicilian Expedition of 415 to 413 BC.

Rome distrusted concentrated power more than it trusted the crowd. Collegial offices, one-year terms, vetoes and the authority of the Senate were designed to slow decisions and check ambition. The result was stability for centuries, but also a system that could lock up when rival politicians used their vetoes and that could be hijacked by generals with loyal armies.

How each system ended

Athens

Athenian democracy was overthrown twice by oligarchic coups during and after the Peloponnesian War, in 411 BC and again in 404 BC under the “Thirty Tyrants,” but it was restored each time. Its final end came from outside. After Athens and its allies lost the Lamian War against Macedon in 322 BC, the Macedonians imposed a property qualification for citizenship, ending the democracy in its classic form. Democratic forms reappeared at times afterward, but under the shadow of larger powers.

Rome

The Roman Republic collapsed from within. From the murder of Tiberius Gracchus in 133 BC, political violence grew. Generals such as Marius, Sulla, Pompey and Julius Caesar commanded armies whose soldiers looked to them for rewards, and civil wars followed. Caesar was named dictator for life and assassinated in 44 BC. His heir Octavian defeated his rivals and in 27 BC became Augustus, keeping the outward forms of the Republic while holding supreme power himself.

Influence on modern governments

Most modern states owe more, structurally, to Rome than to Athens. The framers of the United States Constitution studied Rome and Polybius, adopted a Senate, separated powers and built in checks such as the presidential veto. James Madison, in Federalist No. 10, explicitly distinguished a “republic,” in which citizens elect representatives, from a “pure democracy,” which he associated with the turbulence of ancient city-states.

Athens gave the modern world the word democracy and the ideal of citizens governing themselves as equals. Its specific techniques also have modern echoes: trial by jury, referendums and, more recently, citizens’ assemblies selected by lot to deliberate on policy questions. Many modern constitutions are best understood as combining an Athenian principle of popular sovereignty with Roman machinery of representation and balance.

Frequently asked questions

Was the Roman Republic a democracy?

Not in the Athenian sense. Roman citizens elected officials and voted on laws, so there was a popular element, but voting was weighted toward the wealthy, only magistrates could propose laws, and the Senate held great influence. Historians still debate how democratic it was in practice.

What was the main difference between Athenian and Roman voting?

Athenians voted as individuals in a single Assembly, with each vote counting equally. Romans voted in groups, centuries or tribes, and each group cast one collective vote, which gave some citizens much more influence than others.

Why did Athens use a lottery to choose officials?

Athenians believed that elections favoured the rich and well known. Choosing most officials by lot from volunteers spread office among ordinary citizens and reduced corruption and the build-up of personal power. Military generals were the main exception and were elected.

Which system lasted longer?

The Roman Republic lasted roughly five centuries by traditional dating, from 509 BC to 27 BC. Athenian democracy lasted under two centuries, from 508/507 BC to 322 BC, with brief interruptions.

Is the United States a democracy or a republic?

It is usually described as a representative democracy organised as a constitutional republic. Its founders drew directly on Roman ideas such as the Senate and checks and balances, while the principle of popular sovereignty traces back to Greek democratic ideals.

Further reading

Democracy: A Life by Paul Cartledge. A leading historian’s account of how Greek democracy worked and what later ages made of it. Find it on Amazon

Rubicon: The Last Years of the Roman Republic by Tom Holland. A vivid narrative of how the Republic’s institutions broke down in the 1st century BC. Find it on Amazon

SPQR: A History of Ancient Rome by Mary Beard. Explains how Roman political institutions developed and how citizenship expanded. Find it on Amazon

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