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Classical Greece

Period of ancient Greece (510 to 323 BC)

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The Acropolis of Athens as seen from the Pnyx in October 2025
Nikos Kitsakis · CC BY 4.0

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Through Classical Athens, Athenian democracy and Literature

In the context of the art, architecture, and culture of ancient Greece, the Classical period corresponds to most of the 5th and 4th centuries BC (the most common dates being the fall of the last Athenian tyrant in 510 BC to the death of Alexander the Great in 323 BC). The Classical period in this sense follows the Greek Dark Ages and Archaic period and is in turn succeeded by the Hellenistic period.

5th century BC

This century is essentially studied from the Athenian outlook because Athens has left us more narratives, plays, and other written works than any of the other ancient Greek states. From the perspective of Athenian culture in classical Greece, the period generally referred to as the 5th century BC extends slightly into the 6th century BC. In this context, one might consider that the first significant event of this century occurs in 508 BC, with the fall of the last Athenian tyrant and Cleisthenes' reforms. However, a broader view of the whole Greek world might place its beginning at the Ionian Revolt of 500 BC, the event that provoked the Persian invasion of 492 BC. The Persians were defeated in 490 BC. A second Persian attempt, in 481–479 BC, failed as well, despite having overrun much of modern-day Greece (north of the Isthmus of Corinth) at a crucial point during the war following the Battle of Thermopylae and the Battle of Artemisium. The Delian League then formed, under Athenian hegemony and as Athens' instrument. Athens' successes caused several revolts among the allied cities, all of which were put down by force, but Athenian dynamism finally awoke Sparta and brought about the Peloponnesian War in 431 BC. After both sides were exhausted, a brief peace followed; then the war resumed in Sparta's favor. Athens was decisively defeated in 404 BC, and internal unrest marked the end of the 5th century BC in Greece.

Since its beginning, Sparta had been ruled by a diarchy. This meant that Sparta had two kings ruling concurrently throughout its entire history. The two kingships were both hereditary, vested in the Agiad dynasty and the Eurypontid dynasty. According to legend, the respective hereditary lines of these two dynasties sprang from Eurysthenes and Procles, twin descendants of Hercules. They were said to have conquered Sparta two generations after the Trojan War.

Athens under Cleisthenes

In 510 BC, Spartan troops helped the Athenians overthrow their king, the tyrant Hippias, son of Peisistratos. Cleomenes I, king of Sparta, put in place a pro-Spartan oligarchy headed by Isagoras. But his rival Cleisthenes, with the support of the middle class and aided by pro-democracy citizens, took over. Cleomenes intervened in 508 and 506 BC, but could not stop Cleisthenes, now supported by the Athenians. Through Cleisthenes' reforms, the people endowed their city with isonomic institutions—equal rights for all citizens (though only men were citizens)—and established ostracism.

The isonomic and isegoric (equal freedom of speech) democracy was first organized into about 130 demes, which became the basic civic element. The 10,000 citizens exercised their power as members of the assembly (ἐκκλησία, ekklesia), headed by a council of 500 citizens chosen at random.

The city's administrative geography was reworked, in order to create mixed political groups: not federated by local interests linked to the sea, to the city, or to farming, whose decisions (e.g. a declaration of war) would depend on their geographical position. The territory of the city was also divided into thirty trittyes as follows:

  • ten trittyes in the coastal region (παρᾰλία, paralia)
  • ten trittyes in the ἄστυ (astu), the urban centre
  • ten trittyes in the rural interior, (μεσογεία, mesogia).

A tribe consisted of three trittyes, selected at random, one from each of the three groups. Each tribe therefore always acted in the interest of all three sectors.

It was this corpus of reforms that allowed the emergence of a wider democracy in the 460s and 450s BC.

The Persian Wars

In Ionia (the modern Aegean coast of Turkey), the Greek cities, which included great centres such as Miletus and Halicarnassus, were unable to maintain their independence and came under the rule of the Persian Empire in the mid-6th century BC. In 499 BC that region's Greeks rose in the Ionian Revolt, and Athens and some other Greek cities sent aid, but were quickly forced to back down after defeat in 494 BC at the Battle of Lade. Asia Minor returned to Persian control.

In 492 BC, the Persian general Mardonius led a campaign through Thrace and Macedonia. He was victorious and again subjugated the former and conquered the latter, but he was wounded and forced to retreat back into Asia Minor. In addition, a fleet of around 1,200 ships that accompanied Mardonius on the expedition was wrecked by a storm off the coast of Mount Athos. Later, the generals Artaphernes and Datis led a successful naval expedition against the Aegean islands.

In 490 BC, Darius the Great, having suppressed the Ionian cities, sent a Persian fleet to punish the Greeks. (Historians are uncertain about their number of men; accounts vary from 18,000 to 100,000.) They landed in Attica intending to take Athens, but were defeated at the Battle of Marathon by a Greek army of 9,000 Athenian hoplites and 1,000 Plataeans led by the Athenian general Miltiades. The Persian fleet continued to Athens but, seeing it garrisoned, decided not to attempt an assault.

In 480 BC, Darius' successor Xerxes I sent a much more powerful force of 300,000 by land, with 1,207 ships in support, across a double pontoon bridge over the Hellespont. This army took Thrace, before descending on Thessaly and Boeotia, whilst the Persian navy skirted the coast and resupplied the ground troops. The Greek fleet, meanwhile, dashed to block Cape Artemision. After being delayed by Leonidas I, the Spartan king of the Agiad Dynasty, at the Battle of Thermopylae (a battle made famous by the 300 Spartans who faced the entire Persian army), Xerxes advanced into Attica, and captured and burned Athens. The subsequent Battle of Artemisium resulted in the capture of Euboea, bringing most of mainland Greece north of the Isthmus of Corinth under Persian control. However, the Athenians had evacuated the city of Athens by sea before Thermopylae, and under the command of Themistocles, they defeated the Persian fleet at the Battle of Salamis, where the smaller Greek navy exploited the narrow straits to neutralize the Persians' numerical advantage and inflict a decisive blow.

In 483 BC, during the period of peace between the two Persian invasions, a vein of silver ore had been discovered in the Laurion (a small mountain range near Athens), and the hundreds of talents mined there were used to build 200 warships to combat Aeginetan piracy. A year later, the Greeks, under the Spartan Pausanias, defeated the Persian army at Plataea. The Persians then began to withdraw from Greece, and never attempted an invasion again.

The Athenian fleet then turned to chasing the Persians from the Aegean Sea, defeating their fleet decisively in the Battle of Mycale; then in 478 BC the fleet captured Byzantium. At that time Athens enrolled all the island states and some mainland ones into an alliance called the Delian League, so named because its treasury was kept on the sacred island of Delos. The Spartans, although they had taken part in the war, withdrew into isolation afterwards, allowing Athens to establish unchallenged naval and commercial power.

The Peloponnesian War

Origins of the Delian League and the Peloponnesian League

In 431 BC war broke out between Athens and Sparta. The war was a struggle not merely between two city-states but rather between two coalitions, or leagues of city-states: the Delian League, led by Athens, and the Peloponnesian League, led by Sparta.

Delian league

The Delian League grew out of the need to present a unified front of all Greek city-states against Persian aggression. In 481 BC, Greek city-states, including Sparta, met in the first of a series of "congresses" that strove to unify all the Greek city-states against the danger of another Persian invasion. The coalition that emerged from the first congress was named the "Hellenic League" and included Sparta. Persia, under Xerxes, invaded Greece in September 481 BC, but the Athenian navy defeated the Persian navy. The Persian land forces were delayed in 480 BC by a much smaller force of 300 Spartans, 400 Thebans and 700 men from Boeotian Thespiae at the Battle of Thermopylae. The Persians left Greece in 479 BC after their defeat at Plataea.

Plataea was the final battle of Xerxes' invasion of Greece. After this, the Persians never again tried to invade Greece. With the disappearance of this external threat, cracks appeared in the united front of the Hellenic League. In 477, Athens became the recognised leader of a coalition of city-states that did not include Sparta. This coalition met and formalized their relationship at the holy city of Delos. Thus, the League took the name "Delian League". Its formal purpose was to liberate Greek cities still under Persian control. However, it became increasingly apparent that the Delian League was really a front for Athenian hegemony throughout the Aegean.

Peloponnesian (or Spartan) league

A competing coalition of Greek city-states centred around Sparta arose, and became more important as the external Persian threat subsided. This coalition is known as the Peloponnesian League. However, unlike the Hellenic League and the Delian League, this league was not a response to any external threat, Persian or otherwise: it was unabashedly an instrument of Spartan policy aimed at Sparta's security and Spartan dominance over the Peloponnese peninsula. The term "Peloponnesian League" is a misnomer. It was not really a "league" at all. Nor was it really "Peloponnesian". There was no equality at all between the members, as might be implied by the term "league". Furthermore, most of its members were located outside the Peloponnese Peninsula. The terms "Spartan League" and "Peloponnesian League" are modern terms. Contemporaries instead referred to "Lacedaemonians and their Allies" to describe the "league".

The league had its origins in Sparta's conflict with Argos, another city on the Peloponnese Peninsula. In the 7th century BC Argos dominated the peninsula. Even in the early 6th century the Argives attempted to control the northeastern part of the peninsula. The rise of Sparta in the 6th century brought Sparta into conflict with Argos. However, with the conquest of the Peloponnesian city-state of Tegea in 550 BC and the defeat of the Argives in 546 BC the Spartans' control began to reach well beyond the borders of Laconia.

The thirty years peace

As the two coalitions grew, their separate interests kept coming into conflict. Under the influence of King Archidamus II (the Eurypontid king of Sparta from 476 BC through 427 BC), Sparta, in the late summer or early autumn of 446 BC, concluded the Thirty Years Peace with Athens. This treaty took effect the next winter in 445 BC Under the terms of this treaty, Greece was formally divided into two large power zones. Sparta and Athens agreed to stay within their own power zone and not to interfere in the other's. Despite the Thirty Years Peace, it was clear that war was inevitable. As noted above, at all times during its history down to 221 BC, Sparta was a "diarchy" with two kings ruling the city-state concurrently. One line of hereditary kings was from the Eurypontid Dynasty while the other king was from the Agiad Dynasty. With the signing of the Thirty Years Peace treaty, Archidamus II felt he had successfully prevented Sparta from entering into a war with its neighbours. However, the strong war party in Sparta soon won out and in 431 BC Archidamus was forced to go to war with the Delian League. However, in 427 BC, Archidamus II died and his son, Agis II succeeded to the Eurypontid throne of Sparta.

Causes of the Peloponnesian war

The immediate causes of the Peloponnesian War vary from account to account. However three causes are fairly consistent among the ancient historians, namely Thucydides and Plutarch. Prior to the war, Corinth and one of its colonies, Corcyra (modern-day Corfu), went to war in 435 BC over the new Corcyran colony of Epidamnus. Sparta refused to become involved in the conflict and urged an arbitrated settlement of the struggle. In 433 BC, Corcyra sought Athenian assistance in the war. Corinth was known to be a traditional enemy of Athens. However, to further encourage Athens to enter the conflict, Corcyra pointed out how useful a friendly relationship with Corcyra would be, given the strategic locations of Corcyra itself and the colony of Epidamnus on the east shore of the Adriatic Sea. Furthermore, Corcyra promised that Athens would have the use of Corcyra's navy, the third-largest in Greece. This was too good an offer for Athens to refuse. Accordingly, Athens signed a defensive alliance with Corcyra.

The next year, in 432 BC, Corinth and Athens argued over control of Potidaea (near modern-day Nea Potidaia), eventually leading to an Athenian siege of Potidaea. In 434–433 BC Athens issued the "Megarian Decrees", a series of decrees that placed economic sanctions on the Megarian people. The Peloponnesian League accused Athens of violating the Thirty Years Peace through all of the aforementioned actions, and, accordingly, Sparta formally declared war on Athens.

Many historians consider these to be merely the immediate causes of the war. They would argue that the underlying cause was the growing resentment on the part of Sparta and its allies at the dominance of Athens over Greek affairs. The war lasted 27 years, partly because Athens (a naval power) and Sparta (a land-based military power) found it difficult to come to grips with each other.

The Peloponnesian war: Opening stages (431–421 BC)

Sparta's initial strategy was to invade Attica, but the Athenians were able to retreat behind their walls. An outbreak of plague in the city during the siege caused many deaths, including that of Pericles. At the same time the Athenian fleet landed troops in the Peloponnesus, winning battles at Naupactus (429) and Pylos (425). However, these tactics could bring neither side a decisive victory. After several years of inconclusive campaigning, the moderate Athenian leader Nicias concluded the Peace of Nicias (421).

The Peloponnesian war: Second phase (418–404 BC)

In 418 BC, however, conflict between Sparta and the Athenian ally Argos led to a resumption of hostilities. Alcibiades was one of the most influential voices in persuading the Athenians to ally with Argos against the Spartans. At the Mantinea Sparta defeated the combined armies of Athens and her allies. Accordingly, Argos and the rest of the Peloponnesus was brought back under the control of Sparta. The return of peace allowed Athens to be diverted from meddling in the affairs of the Peloponnesus and to concentrate on building up the empire and putting their finances in order. Soon trade recovered and tribute began, once again, rolling into Athens. A strong "peace party" arose, which promoted avoidance of war and continued concentration on the economic growth of the Athenian Empire. Concentration on the Athenian Empire, however, brought Athens into conflict with another Greek state.

The Melian expedition (416 BC)

Ever since the formation of the Delian League in 477 BC, the island of Melos had refused to join. By refusing to join the League, however, Melos reaped the benefits of the League without bearing any of the burdens. In 425 BC, an Athenian army under Cleon attacked Melos to force the island to join the Delian League. However, Melos fought off the attack and was able to maintain its neutrality. Further conflict was inevitable and in the spring of 416 BC the mood of the people in Athens was inclined toward military adventure. The island of Melos provided an outlet for this energy and frustration for the military party. Furthermore, there appeared to be no real opposition to this military expedition from the peace party. Enforcement of the economic obligations of the Delian League upon rebellious city-states and islands was a means by which continuing trade and prosperity of Athens could be assured. Melos alone among all the Cycladic Islands located in the south-west Aegean Sea had resisted joining the Delian League. This continued rebellion provided a bad example to the rest of the members of the Delian League.

The debate between Athens and Melos over the issue of joining the Delian League is presented by Thucydides in his Melian Dialogue. The debate did not in the end resolve any of the differences between Melos and Athens and Melos was invaded in 416 BC, and soon occupied by Athens. This success on the part of Athens whetted the appetite of the people of Athens for further expansion of the Athenian Empire. Accordingly, the people of Athens were ready for military action and tended to support the military party, led by Alcibiades.

The Sicilian expedition (415–413 BC)

Thus, in 415 BC, Alcibiades found support within the Athenian Assembly for his position when he urged that Athens launch a major expedition against Syracuse, a Peloponnesian ally in Sicily, Magna Graecia. Segesta, a town in Sicily, had requested Athenian assistance in their war with another Sicilian town—the town of Selinus. Although Nicias was a sceptic about the Sicilian Expedition, he was appointed along with Alcibiades to lead the expedition.

However, unlike the expedition against Melos, the citizens of Athens were deeply divided over Alcibiades' proposal for an expedition to far-off Sicily. In June 415 BC, on the very eve of the departure of the Athenian fleet for Sicily, a band of vandals in Athens defaced the many statues of the god Hermes that were scattered throughout the city of Athens. This action was blamed on Alcibiades and was seen as a bad omen for the coming campaign. In all likelihood, the coordinated action against the statues of Hermes was the action of the peace party. Having lost the debate on the issue, the peace party was desperate to weaken Alcibiades' hold on the people of Athens. Successfully blaming Alcibiades for the action of the vandals would have weakened Alcibiades and the war party in Athens. Furthermore, it is unlikely that Alcibiades would have deliberately defaced the statues of Hermes on the very eve of his departure with the fleet. Such defacement could only have been interpreted as a bad omen for the expedition that he had long advocated.

Even before the fleet reached Sicily, word arrived to the fleet that Alcibiades was to be arrested and charged with sacrilege of the statues of Hermes, prompting Alcibiades to flee to Sparta. When the fleet later landed in Sicily and the battle was joined, the expedition was a complete disaster. The entire expeditionary force was lost and Nicias was captured and executed. This was one of the most crushing defeats in the history of Athens.

Alcibiades in Sparta

Meanwhile, Alcibiades betrayed Athens and became a chief advisor to the Spartans and began to counsel them on the best way to defeat his native land. Alcibiades persuaded the Spartans to begin building a real navy for the first time—large enough to challenge the Athenian superiority at sea. Additionally, Alcibiades persuaded the Spartans to ally themselves with their traditional foes—the Persians. As noted below, Alcibiades soon found himself in controversy in Sparta when he was accused of having seduced Timaea, the wife of Agis II, the Eurypontid king of Sparta. Accordingly, Alcibiades was required to flee from Sparta and seek the protection of the Persian Court.

Persia intervenes

In the Persian court, Alcibiades now betrayed both Athens and Sparta. He encouraged Persia to give Sparta financial aid to build a navy, advising that long and continuous warfare between Sparta and Athens would weaken both city-states and allow the Persians to dominate the Greek peninsula.

Among the war party in Athens, a belief arose that the catastrophic defeat of the military expedition to Sicily in 415–413 could have been avoided if Alcibiades had been allowed to lead the expedition. Thus, despite his treacherous flight to Sparta and his collaboration with Sparta and later with the Persian court, there arose a demand among the war party that Alcibiades be allowed to return to Athens without being arrested. Alcibiades negotiated with his supporters on the Athenian-controlled island of Samos. Alcibiades felt that "radical democracy" was his worst enemy. Accordingly, he asked his supporters to initiate a coup to establish an oligarchy in Athens. If the coup were successful Alcibiades promised to return to Athens. In 411, a successful oligarchic coup was mounted in Athens, by a group which became known as "the 400". However, a parallel attempt by the 400 to overthrow democracy in Samos failed. Alcibiades was immediately made an admiral (navarch) in the Athenian navy. Later, due to democratic pressures, the 400 were replaced by a broader oligarchy called "the 5000". Alcibiades did not immediately return to Athens. In early 410, Alcibiades led an Athenian fleet of 18 triremes against the Persian-financed Spartan fleet at Abydos near the Hellespont. The Battle of Abydos had actually begun before the arrival of Alcibiades, and had been inclining slightly toward the Athenians. However, with the arrival of Alcibiades, the Athenian victory over the Spartans became a rout. Only the approach of nightfall and the movement of Persian troops to the coast where the Spartans had beached their ships saved the Spartan navy from total destruction.

Following Alcibiades' advice, the Persian Empire had been playing Sparta and Athens off against each other. However, as weak as the Spartan navy was after the Battle of Abydos, the Persian navy directly assisted the Spartans. Alcibiades then pursued and met the combined Spartan and Persian fleets at the Battle of Cyzicus later in the spring of 410, achieving a significant victory.

Lysander and the end of the war

With the financial help of the Persians, Sparta built a fleet to challenge Athenian naval supremacy. With the new fleet and new military leader Lysander, Sparta attacked Abydos, seizing the strategic initiative. By occupying the Hellespont, the source of Athens' grain imports, Sparta effectively threatened Athens with starvation. In response, Athens sent its last remaining fleet to confront Lysander, but were decisively defeated at Aegospotami (405 BC). The loss of her fleet threatened Athens with bankruptcy. In 404 BC Athens sued for peace, and Sparta dictated a predictably stern settlement: Athens lost her city walls, her fleet, and all of her overseas possessions. Lysander abolished the democracy and appointed in its place an oligarchy called the "Thirty Tyrants" to govern Athens.

Meanwhile, in Sparta, Timaea gave birth to a child. The child was given the name Leotychidas, after the great grandfather of Agis II—King Leotychidas of Sparta. However, because of Timaea's alleged affair with Alcibiades, it was widely rumoured that the young Leotychidas was fathered by Alcibiades. Indeed, Agis II refused to acknowledge Leotychidas as his son until he relented, in front of witnesses, on his deathbed in 400 BC.

Upon the death of Agis II, Leotychidas attempted to claim the Eurypontid throne for himself, but this was met with an outcry, led by Lysander, who was at the height of his influence in Sparta. Lysander argued that Leotychidas was a bastard and could not inherit the Eurypontid throne; instead he backed the hereditary claim of Agesilaus, son of Agis by another wife. With Lysander's support, Agesilaus became the Eurypontid king as Agesilaus II, expelled Leotychidas from the country, and took over all of Agis' estates and property.

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