Greece and Rome: the political inheritance

Classical Greece was not a country but a landscape of independent poleis, city-states separated by mountains and sea. That fragmentation encouraged political experiment: monarchy, oligarchy, tyranny and democracy all existed side by side and could be compared.

Athens developed the most extensive democracy of the ancient world. Citizens voted directly in the assembly, most offices were filled by lot rather than election, and juries numbered in the hundreds. The reasoning behind selection by lot is worth noticing: election was thought to favour the wealthy and well known, while the lottery treated citizens as equals.

Citizenship excluded women, enslaved people and resident foreigners, which left a minority of the adult population with political rights. Athens also held a maritime empire whose tribute funded its public life, so its democracy at home coexisted with domination abroad.

Greek thinkers were themselves critics. Plato argued that decisions require expertise most citizens lack; Aristotle catalogued constitutions and argued that mixed forms were the most stable. Those arguments still structure debates about direct participation versus representation.

Rome built a mixed constitution: consuls held executive power but there were two of them and their term was one year, the senate concentrated experience and wealth, and popular assemblies elected officials and passed laws. Tribunes could veto acts harmful to ordinary citizens.

The design principle was distrust of concentrated power, enforced through short terms, shared offices and mutual veto. Rome's system was not democratic in the Athenian sense, since voting was weighted heavily toward wealth, but its separation of functions became the template later republics studied closely.

• Expansion created armies loyal to their generals rather than to the state.
• Conquest concentrated land and enslaved labour, undermining the smallholding citizen-soldier.
• Political violence became routine, and norms restraining ambition eroded.
• Institutions designed for a city proved inadequate for governing the Mediterranean.
• Repeated civil wars ended with Augustus holding the substance of power while preserving republican appearances.

Roman law is the most durable legacy. Concepts such as contract, property, legal personality, the distinction between civil and criminal matters, and the presumption that the accused must be proven guilty pass into later European law through the code compiled under Justinian.

Also inherited: the vocabulary of politics, from senate and republic to dictator and veto; the idea of citizenship as a legal status rather than an ethnic one; and the physical infrastructure of roads, aqueducts and concrete construction that shaped settlement patterns for centuries.