The decline of Spartan power from Pausanias and the Persian Wars through the Peloponnesian War to the Battle of Leuctra in 371 BC, including the rise of the Theban hegemony

A 12-mark response needs four to five causal phases with sources and historiography.

Thesis

Spartan decline was both structural (oliganthropia, the Helot threat) and contingent (post-404 BC diplomatic failures and the Theban response). Leuctra was the symptom of long-developing weaknesses, not a sudden reversal.

Pausanias and the Persian Wars (480 to 470s BC)

Sparta led the Greek alliance: Leonidas at Thermopylae (480 BC), Pausanias at Plataea (479 BC). Pausanias was recalled, tried, and starved in the temple of Athena Chalkioikos around 470 BC (Thucydides 1.94-134). Athens replaced Sparta in the Aegean through the Delian League (478 BC).

Ithome revolt (460s BC)

Major earthquake around 464 BC triggered a Helot revolt at Ithome. Sparta requested Athenian help but sent the contingent home fearing democratic sympathy with Helots (Thucydides 1.101-103). Spartan-Athenian alliance broken.

Peloponnesian War (431-404 BC)

Sparta won with Persian gold after the Athenian Sicilian disaster (413 BC). Lysander destroyed the Athenian fleet at Aegospotami (405 BC). Sparta imposed the Thirty Tyrants.

Corinthian War (395-387 BC)

Coalition of Thebes, Athens, Argos, Corinth (funded by Persia) against Sparta. Spartan fleet destroyed at Cnidus (394 BC). King's Peace (387 BC) was a Persian-imposed settlement.

Agesilaus II and Leuctra (387-371 BC)

Aggressive foreign policy: seizure of the Cadmeia (382 BC), Theban resistance under Epaminondas, the Battle of Leuctra (371 BC) where Epaminondas's oblique formation killed Cleombrotus and around 400 Spartiates. Liberation of Messenia in 369 BC ended the Helot economy.

Structural cause

Oliganthropia (Aristotle, Politics 1270a) reduced Spartiate numbers from around 8,000 (480 BC) to around 1,500 (371 BC).

Historian

Cartledge (Agesilaos and the Crisis of Sparta, 1987) integrates structural and contingent causes through the reign of Agesilaus II. Markers reward integration and named historians.

A 5-mark "outline" needs the battle, its causes, and its consequences.

The battle

Fought near Leuctra in Boeotia, July 371 BC. The Theban general Epaminondas commanded a force of around 7,000 against a Spartan-led army of around 11,000 under King Cleombrotus.

Epaminondas's tactical innovation

Epaminondas used the oblique formation: a strong left wing 50 ranks deep (the elite "Sacred Band" of 300 hoplites at its head) advanced first to crush the Spartan right (where Cleombrotus and the elite Spartiates fought). The rest of the line held back until the decisive wing engaged. The Spartan phalanx, deprived of its leadership, collapsed.

Casualties

Around 400 Spartiates died (out of perhaps 700 present), with around 1,000 Spartan allies. The total Spartiate citizen body was probably 1,500 to 2,000 at this time, so the death toll was crippling.

Consequences

Spartan land hegemony ended. Epaminondas invaded the Peloponnese in 370 BC, marched to Sparta itself (which was saved only by the desperate defence and the unwalled terrain), liberated Messenia (founding Messene in 369 BC), and broke the Helot economy that had sustained Sparta.

Wider significance

The myth of Spartan military invincibility was broken. Thebes under Epaminondas became the dominant Greek power until his death at Mantinea (362 BC).

Markers reward the tactical innovation, the casualties, and the loss of Messenia.

A 4-mark "outline" wants sequenced points with brief development; markers award roughly one mark per developed point.

Point 1: the command

In 478 BC Pausanias, the Agiad regent who had commanded the Greek victory at Plataea (479 BC), led the allied Greek fleet that captured Byzantium from Persian control.

Point 2: the conduct

Ancient tradition (Thucydides 1.94-95, developed at 1.128-134) records that Pausanias adopted Persian dress and manners, treated the allied Greek contingents arrogantly, and was suspected of secretly corresponding with the Persian king (medism).

Point 3: the recall

Sparta recalled Pausanias to answer the charges, and the allied states, resentful of his conduct, transferred naval leadership to Athens.

Point 4: the consequence

Athens founded the Delian League in 478 BC, permanently displacing Sparta as leader of the war against Persia; Pausanias himself was later starved to death in the temple of Athena Chalkioikos, around 470 BC, after further evidence of intrigue with the Helots and Persia.

Markers reward the causal chain from Pausanias's conduct to the Delian League's founding, correctly dated, not a narrative retelling alone.

A 4-mark "outline" wants the cause, the event, and the consequence with brief development.

Point 1: the earthquake

Around 464 BC a major earthquake struck the Eurotas valley, killing a significant, though ancient and disputed, number of Spartans.

Point 2: the revolt

The Helots, predominantly Messenian, together with some Perioikoi, took the opportunity to revolt and fortified themselves on Mount Ithome for what ancient tradition treats as close to a decade of warfare.

Point 3: the Athenian episode

Struggling to dislodge the rebels, Sparta invoked its alliance with Athens; Cimon led out an Athenian hoplite force, but Sparta, fearing Athenian sympathy for the Helots, sent the Athenians home alone while retaining other allied contingents (Thucydides 1.101-103).

Point 4: the consequence

The dismissal insulted Athens, broke the Spartan-Athenian alliance, contributed to the ostracism of the pro-Spartan Cimon and the rise of Ephialtes' and Pericles' democratic reforms (462-461 BC), and led directly to the First Peloponnesian War (460-446 BC).

Markers reward the earthquake-to-alliance-breach chain and the correct attribution to Thucydides.

A 3-mark "identify the significance" wants the event named accurately and its importance stated, not narrated at length.

The event. In 425 BC, during the Archidamian phase of the Peloponnesian War, an Athenian force under Cleon and Demosthenes trapped a Spartan hoplite garrison, including around 120 full Spartiate citizens, on the island of Sphacteria near Pylos; 292 hoplites eventually surrendered rather than die fighting.

The significance. Spartans were expected to die rather than surrender, as Leonidas's 300 had at Thermopylae in 480 BC. Thucydides (4.2-41) records that the surrender shocked the Greek world and, for the first time, exposed Spartan land forces as fallible and their reputation for invincibility as a myth, decades before Leuctra confirmed it.

Markers reward the explicit comparison with the Thermopylae ideal and the "first crack in the myth" judgement, not just a description of the siege.

A 6-mark source-based "explain" needs the source USED explicitly, plus own knowledge that goes beyond it, and ideally a qualification.

Use the source

Source A shows that even the state's own decree, restricting captured Persian gold and silver to public use, could not hold in practice: it records that private households came to possess the metal "within a generation" despite the ban. This captures the tension between the Lycurgan ideal of equality among the Homoioi and the reality after 404 BC.

Own knowledge - the mechanism

The Lycurgan system had traditionally banned Spartiates from holding gold or silver coin, using unwieldy iron currency instead to discourage private wealth and preserve equal contributions to the syssitia. Lysander's return from Aegospotami (405 BC) with Persian treasure broke this taboo in practice even where it survived in law. Plutarch (Lysander 16-17) blames Lysander directly for introducing the corrupting metal.

Own knowledge - the consequence

Modern historian Stephen Hodkinson (Property and Wealth in Classical Sparta, 2000) argues that the resulting concentration of wealth, compounded by land passing to fewer families through female inheritance (Aristotle, Politics 2.9), reduced the number of Spartiates who could still afford the monthly syssition contribution, directly feeding oliganthropia.

Qualify it

The formal decree suggests Sparta tried to resist the corrosion, so the process was gradual and contested, not an instant abandonment of Lycurgan values; this qualification separates a top answer from one that treats the ban as meaningless from the outset.

Markers reward explicit use of the source's wording, a named ancient source AND a named modern historian, and the qualification.

A 5-mark "explain" needs the event, its ancient evidence, and the link to the broader structural argument.

The conspiracy

Around 397 BC, early in the reign of Agesilaus II, a Hypomeion (a Spartiate of citizen birth who had lost full rights, probably through poverty) named Cinadon organised Helots, Perioikoi, Neodamodeis, and other Hypomeiones in a plot against the ruling Spartiate minority.

The evidence

Xenophon (Hellenica 3.3.4-11) records Cinadon telling an informant that in the Spartan marketplace one could count barely forty full citizens against several thousand men who hated them enough to "eat them raw". An informer betrayed the plot to the ephors, who arrested Cinadon under a pretext and executed him and his fellow conspirators.

The link to oliganthropia

The conspiracy converts a demographic statistic into direct political danger: Aristotle's later claim (Politics 2.9, 1270a) that Sparta could field fewer than 1,000 hoplite-citizens by Leuctra describes exactly the imbalance Cinadon exploited two generations earlier. It shows Sparta's citizen shortage was already a matter of internal security well before it became a matter of battlefield casualties.

Markers reward the named ancient source, the specific numerical claim, and the explicit link to oliganthropia as a long-term structural cause.

A 6-mark reliability assessment needs origin/purpose, a balanced judgement, and corroboration.

Origin and purpose

Aristotle's Politics (2.9, conventionally 1269a-1270b) is a philosophical critique of the Spartan constitution written within a generation of Leuctra (371 BC), not a battlefield report or a census. His purpose is to explain Sparta's decline as a case study in flawed constitutional design, particularly land concentration through female inheritance and dowries.

Values

As a near-contemporary, philosophically trained observer, Aristotle offers a specific, testable claim, that Sparta could field fewer than 1,000 hoplite-citizens by the time of Leuctra, and a plausible mechanism (land concentration) rather than just a number.

Limitations

Aristotle had a thesis to prove (that flawed institutions ruin states) and may have sharpened the figure for rhetorical effect; he was also an outsider without access to Spartan census records, which in any case did not exist in the modern sense.

Corroboration

Herodotus (7.234) gives an earlier, independent figure of about 8,000 Spartiates in 480 BC; Xenophon (Hellenica 6.4.15) implies only around 700 Spartiates were present at Leuctra itself. Modern historians such as Cartledge reconcile these ancient figures at somewhere between 1,500 and 2,000 citizens by 371 BC, a range that treats Aristotle's "fewer than 1,000" as a plausible but likely rhetorically sharpened lower estimate rather than a precise count.

Markers reward origin/purpose analysis, a balanced verdict (useful trend, uncertain precision), and corroboration with at least one other named ancient source.

A band-6 essay on "to what extent... final act... rather than its cause" needs a clear verdict, dated evidence across the whole period, and named historians used as argument. This is a PLAN plus a model paragraph.

Thesis

Leuctra (371 BC) was overwhelmingly the final act of a century-long structural and diplomatic decline, not its cause: Sparta's capacity to survive one lost battle had already been destroyed by oliganthropia, the unresolved Helot threat, and a sequence of contingent diplomatic failures after 404 BC. Leuctra converted a chronic weakness into a terminal one; it did not create the weakness.

Argument line 1: the structural decline pre-dates 371 BC by over a century

Herodotus (7.234) gives roughly 8,000 Spartiates in 480 BC. Aristotle (Politics 2.9, 1270a) blames land concentration through female inheritance for the collapse of that number, and the conspiracy of Cinadon (c. 397 BC), in which Xenophon (Hellenica 3.3.4-11) records barely forty citizens visible against thousands of resentful Helots, Perioikoi, and Hypomeiones, shows the crisis was acute a full generation before Leuctra.

Argument line 2: the Helot threat was never resolved, only managed

The earthquake and Ithome revolt of the 460s BC show Sparta already fighting an internal war for survival while claiming hegemony abroad; the institutionalised violence of the Krypteia was a permanent tax on Spartan manpower and attention that other Greek states did not pay.

Argument line 3: contingent diplomatic failure after 404 BC accelerated an existing decline. Victory in the Peloponnesian War (404 BC) imported Persian gold that corroded the Lycurgan economic equality underpinning citizenship (Plutarch, Lysander 16-17), while harsh Spartan hegemony over former allies provoked the Corinthian War (395-387 BC) and the humiliating King's Peace (387 BC). Agesilaus II's seizure of the Cadmeia (382 BC) then manufactured Sparta's most dangerous enemy, a resurgent, professionally drilled Theban army under Epaminondas.

Argument line 4: Leuctra as the exposure, not the cause

Xenophon (Hellenica 6.4.15) records around 400 of roughly 700 Spartiates present killed in a single afternoon; against an already shrunken citizen body this was catastrophic precisely because there was no reserve of manpower left to absorb it. The 369 BC liberation of Messenia then removed the Helot-worked land that had funded Spartan citizenship in the first place.

Historiography

Paul Cartledge (Agesilaos and the Crisis of Sparta, 1987) integrates the structural and contingent readings through Agesilaus's reign, arguing the king's personal animus against Thebes converted a survivable structural weakness into a terminal one. G.L. Cawkwell emphasises the diplomatic misjudgements of the post-404 BC period as the more proximate, avoidable cause.

Model paragraph (argument line 1)

Sparta's fate was largely settled long before Cleombrotus led his army into Boeotia. Herodotus's figure of some 8,000 Spartiates in 480 BC had, on Aristotle's later reckoning, fallen to a hoplite force he numbered at under 1,000 by the time of Leuctra, a collapse he attributed to the concentration of land in fewer households through female inheritance and dowries. That this was no abstract trend is shown by the conspiracy of Cinadon around 397 BC: Xenophon records the conspirator counting barely forty full citizens in the Spartan marketplace against several thousand Helots, Perioikoi, and disenfranchised Hypomeiones who wished the Equals dead. A society that could muster forty visible citizens against thousands of the discontented a generation before Leuctra was not undone by one afternoon of Theban tactics; it was already living on borrowed time, and Epaminondas simply presented the bill.

Conclusion

Leuctra was decisive in ending Spartan hegemony immediately and irreversibly, but the evidence across 478 to 397 BC shows the capacity to survive such a defeat, not the defeat itself, was what had already been lost. Judgement sustained: final act, not root cause.

Marker's note: band 6 answers commit to the "to what extent" judgement in the opening line, deploy dated evidence spanning the WHOLE period asked about (not just Leuctra), and integrate at least two named historians as argument. A chronological narrative ending at Leuctra without an early, sustained thesis caps the response at mid-band.

A band-6 essay evaluating internal weaknesses against external defeat needs a sustained verdict and evidence drawn from both sides of the comparison. This is a PLAN plus a model paragraph.

Thesis

Internal weaknesses, chiefly oliganthropia and the unresolved Helot threat, were the primary cause of Sparta's collapse; external military defeats (Sphacteria, Leuctra) were the mechanism by which those weaknesses became visible and irreversible, not an independent cause running alongside them.

Argument line 1: oliganthropia was decades in the making

From roughly 8,000 Spartiates in 480 BC (Herodotus 7.234) to Aristotle's claim of under 1,000 hoplite-citizens by 371 BC (Politics 2.9, 1270a), the trend long pre-dates any single battlefield loss, and Aristotle explicitly blames internal institutions (inheritance law, the syssition qualification), not foreign armies.

Argument line 2: the Helot threat was Sparta's permanent internal war

The Ithome revolt of the 460s BC and the conspiracy of Cinadon (c. 397 BC, Xenophon, Hellenica 3.3.4-11) show the Helot and Hypomeion population as a continuous internal danger requiring the Krypteia's institutionalised violence, diverting resources that a healthier polis could have spent on foreign policy.

Argument line 3: external defeats mattered, but as symptoms

The surrender at Sphacteria (425 BC) shocked contemporaries (Thucydides 4.40) precisely because it broke an ideology, not because Sparta lacked hoplites at that stage; Leuctra (371 BC) was catastrophic specifically because the citizen body was already too small to absorb roughly 400 Spartiate deaths (Xenophon, Hellenica 6.4.15). Both defeats were dangerous BECAUSE of prior internal weakness, not despite it.

Historiography

Stephen Hodkinson (Property and Wealth in Classical Sparta, 2000) argues internal economic inequality, not battlefield failure, was the deeper cause of the citizen shortage. Paul Cartledge (Agesilaos and the Crisis of Sparta, 1987) qualifies this by showing Agesilaus's contingent diplomatic choices (the Cadmeia seizure, 382 BC) turned a manageable internal weakness into war with Thebes.

Model paragraph (argument line 2)

The clearest evidence that Sparta's crisis was internal rather than external comes not from a battlefield but from its own marketplace. Around 397 BC, a generation before a single Theban spear was raised against Sparta, the conspirator Cinadon could reportedly count barely forty full citizens standing among several thousand Helots, Perioikoi, and disenfranchised Hypomeiones, according to Xenophon's near-contemporary account. No external army had yet inflicted this imbalance; land concentration, the syssition's strict wealth qualification, and the permanent unresolved subjugation of the Messenian Helots had done so entirely from within. Sphacteria and Leuctra did not create this vulnerability; they merely ensured the rest of Greece, and Sparta itself, could no longer ignore it.

Conclusion

Internal weakness was the primary, long-developing cause; external defeat was the mechanism that made an already hollowed-out system visibly and finally collapse. Judgement sustained.

Marker's note: band 6 responses distinguish CAUSE from MECHANISM explicitly, use Cinadon and the citizen-number evidence to prove the internal case independent of any battle, and integrate named historians as competing weights in the argument rather than as a final-paragraph decoration.