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Thucydides opens his History by introducing himself and explaining how his methods and intentions differ from those of poets. His evidence is more reliable because it’s based on cross-referenced eyewitness accounts. He includes speeches heard firsthand either by himself or his informants. His account is more trustworthy because poets are known to exaggerate. Thucydides claims that he’s not trying to entertain or compete for prizes, as poets do at festivals, but to inform his audience. While his account may be less enjoyable, it may be more useful, if it helps those who wish to understand past events that will probably recur in the future since human nature is eternally unchanging.
Speaking of the events that led to the war between Athens and Sparta, Thucydides explains that Greek city-states collaborated successfully to repel the Persian invasion, but immediately following that success, they split into two factions. Democratic Athens led one alliance while oligarchic Sparta headed the other. Athens was the undisputed sea power while Sparta’s army dominated on land. Athens’s allies were obliged to pay tribute in the forms of money or navies while Sparta’s were not, though Sparta promoted oligarchic rule in their allied states and received the promise of military aid from them.
Thucydides contrasts the war’s true cause—Sparta’s fear of Athens’s increasing power in the Greek-speaking world—with its manifest cause: the Thirty Years Peace agreement being broken. He then reviews both sides’ public explanations for breaking the Peace via their speeches at Sparta and Athens, known as the “Debate at Sparta” (54).
Thucydides reproduces three speeches made in Sparta in 432, when Corinth and other allies came to present their grievances against Athens. Corinth accused Athens of enslaving their fellow Greek city-states and Sparta of being complicit via inaction. After Corinth spoke, the Spartans debated amongst themselves about how to respond. King Archidamus argued for caution on the grounds that Sparta wasn’t sufficiently prepared for war; he recommended presenting the Corinthians’ complaints to Athens and requesting an arbitration. Sthenelaidas, an ephor, responded that Sparta must defend their allies and declare war before Athens became more powerful. His speech convinced the assembly, who voted to declare the treaty broken by Athens.
After its success against the Persian Empire, Athens’s growing confidence provoked the city to expand its sphere of influence. Sparta, being both conservative about entering wars and preoccupied with rebellions by enslaved people in their territory, didn’t move to stop Athens until it began interfering with Sparta’s allies. Following the vote on the treaty, and after consulting the oracle at Delphi, the Spartan assembly reconvened to vote on whether to declare war on Athens. A Corinthian representative spoke, arguing that Sparta was in a better position than Athens since Sparta had the superior land army, greater discipline, and allies who weren’t, like Athens’s allies, tribute states at risk of rebelling. The assembly voted in favor of declaring war.
Sparta subsequently sent an embassy to Athens demanding that they cease various hostile activities against Sparta’s allies in Potidaea, Aegina, and Megara. Athens refused. Sparta sent a final embassy, offering peace in exchange for granting “autonomy” to their fellow Greek speakers, and the Athenian assembly met to debate how to respond. Athenian general Pericles argued that Sparta was plotting against Athens. Though the Thirty Years Peace promised “to refer our differences to mutual arbitration” (68), Sparta hadn’t requested or accepted arbitration. Pericles noted Sparta’s financial and military weaknesses and the supremacy of Athens at sea. He suggested that Athens request arbitration per the Peace’s terms but that they resolve themselves to the war’s inevitability and channel their ancestors’ valor and boldness against the Persians. The assembly voted to follow his advice, and the two states ceased communicating.
The war officially began with an attack on Athenian ally Plataea. A rebellious faction there teamed up with Thebes to attack the city, but Athenian loyalists defeated and killed them. The city’s women and children were sent to Athens, and a defensive garrison was left behind to defend the city. Sparta and Athens both cited these events as evidence that the other side had broken the Peace. City-states across the Greek-speaking world took sides. Thucydides claims that more were favorable toward Sparta, as they wished either to be liberated from the Athenian empire or feared becoming its subject.
In his introduction, Thucydides sets himself both alongside and against his predecessors who documented famous wars in Greek history as it was understood in the historical present. Though he doesn’t name them explicitly, when he refers to “poets” and “prose-writers,” he’s most likely referring to Homer, whose epic poems the Iliad and Odyssey were incorporated into Athenian public life, and Herodotus, whose Histories was composed of narratives explaining the Persian wars. Like the epics and the Histories, Thucydides’s History is a chronicle of a war in which Greek speakers participated, but a crucial difference is that Thucydides claims only to tell of events that happened within his lifetime and that he could therefore verify. His statement that “poets” and “prose-writers” intend “more to delight the ear than to be true” (51) can seem, through a modern lens, derisive or dismissive. However, competition was a fundamental part of life in Athens, incorporated in contests held during festivals in honor of the gods as well as in their law courts and assemblies, with the goal of benefiting the community and, paradoxically, bringing them into harmony. Thus, even while Thucydides sets himself apart, he’s affirming his participation in an important Athenian tradition and value.
In the first two chapters and throughout the book, Woodruff incorporates speeches that effectively function as debates, providing the point of view of both sides, Spartan and Athenian. In Thucydides’s unabridged History, the speeches can be subsumed by the many squabbles and battles amongst allies who became the proxies through which Athens and Sparta flexed their power and authority. By keeping the context-setting material to the minimum required, Woodruff casts the speeches into relief, highlighting how and why leaders justified and validated the choices they made—and how their subject states promoted their causes to compel their superiors to make choices in the allies’ best interests. For example, the Corinthians successfully tapped into Sparta’s anxiety about Athens’s growing power to provoke Sparta into declaring war. When Archidamus offered a way to address Corinth’s grievances without resorting to violence, Sthenelaidas shrugged it off, even mocking Archidamus for speaking like an Athenian. In Athens, Pericles presented a hybrid of Archidamus and Sthenelaidas: Although he offered a potential alternative to war, his lack of faith in this option and his confidence in Athens’s readiness suggested an eagerness for war and the opportunity it allowed for Athens to test itself against its more established local rival.
The historical audiences of Homer and Herodotus would have known, at the beginning of the works, how both wars would end. Dramatic tension is created not from a big reveal at the close but because the audiences know more than the characters do. Thucydides makes use of this reversal of expectations and tragic irony as well. In his speech, Pericles tells the Athenians that he has many reasons to expect them to win the war, “unless you intend to enlarge your empire while still engaged in the war or choose to take on new risks. I am more afraid of our own mistakes, you see, than I am of our opponents’ schemes” (71). As an Athenian general, Thucydides likely would have heard the speech firsthand. Woodruff proposes that it’s also possible Thucydides puts these words into Pericles mouth so that his audiences, who were aware that Athens lost the war by making the exact mistakes he enumerates, would experience tragic irony.



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