Historical debates: Persian defeat, causes of the Peloponnesian War, Athenian failure

Introduction: The Big Historical Debates

Welcome! This chapter is a bit different from others. Instead of just learning "what happened," we are looking at the historical debates. In your OCR A Level exam, Question 3 will give you an extract from a modern historian (writing from the 18th century onwards), and you will have to use your knowledge of ancient sources to discuss their interpretation.

We focus on three "Million Dollar Questions" of Ancient History:
1. Why did the Greeks win the Persian Wars?
2. Who (or what) actually started the Peloponnesian War?
3. Why did Athens, the great naval superpower, eventually lose?

Don't worry if these seem like huge topics! We’re going to break them down into the key "arguments" you can use in your exam.

Debate 1: Why did the Greeks defeat the Persians (480–479 BC)?

On paper, the Persian Empire should have won. They had more men, more money, and a massive navy. Yet, the Greeks won at Salamis and Plataea. Modern historians debate whether it was Greek brilliance or Persian mistakes that decided the outcome.

Key Argument A: Greek Strategy and Leadership

Many historians argue that individuals like Themistocles (the Athenian) and Pausanias (the Spartan) were the "game-changers."
• Themistocles: He tricked the Persians into fighting in the narrow straits of Salamis, where their huge numbers became a disadvantage.
• Spartan Discipline: At Plataea, the heavy infantry (hoplites) and Spartan training proved superior to the lighter-armed Persian troops.

Key Argument B: Geography and "Home Turf" Advantage

The Greeks chose their battles wisely. By fighting in narrow places like Thermopylae and Salamis, they "bottled up" the Persians. It’s like a small group of people defending a narrow doorway against a crowd—the crowd's size doesn't help them if they can only get through one at a time!

Key Argument C: Greek Unity vs. Persian Disunity

The Hellenic League brought together rivals like Athens and Sparta. While Herodotus (our main ancient source) highlights the arguments between them, the fact they stayed together was vital. In contrast, the Persian army was made up of many conquered nations who might not have been as motivated to die for Xerxes.

Key Takeaway:

Herodotus often credits "the gods" or "freedom," but modern historians tend to look at military technology (hoplites), geography, and logistical failures (the Persians were too far from home and ran out of food).

Debate 2: What caused the Peloponnesian War (431 BC)?

This is the ultimate "he-said, she-said" debate. Thucydides is our primary source here, and he makes a very famous distinction between the immediate excuses and the real reason.

The "Immediate Causes" (The Grievances)

Think of these as the "sparks" that lit the fire. They involve Corinth (Sparta’s ally) and Athens:
• The Corcyra Incident: Athens backed Corcyra in a fight against Corinth.
• Potidaea: Athens besieged this city, which was an Athenian tributary but a Corinthian colony.
• The Megarian Decree: Athens banned Megara (a Spartan ally) from using any ports in the Athenian Empire, essentially strangling their economy.

The "Truest Cause" (Thucydides’ View)

Thucydides (1.23) famously wrote: "The growth of the power of Athens, and the alarm which this inspired in Lacedaemon [Sparta], made war inevitable."
• This is often called "Thucydides' Trap." When one power gets too big, the old power gets scared and attacks.
• Modern historians debate if Pericles (the Athenian leader) intentionally pushed for war or if Sparta was just too paranoid to allow peace.

Key Takeaway:

Was it Athenian aggression (The Megarian Decree), Corinthian pressure on Sparta, or Spartan fear? Most modern interpretations will lean towards one of these factors.

Debate 3: Why did Athens fail in the Peloponnesian War?

Athens started the war with a massive empire and a "wall of money." By 404 BC, their fleet was gone and their city was under Spartan control. Why did it go so wrong?

1. The Sicilian Expedition (415–413 BC)

This is often seen as the "beginning of the end." Athens sent a huge portion of its navy and treasury to conquer Sicily and lost everything. Thucydides blames the Athenian people for being too greedy and Alcibiades for being a reckless leader.

2. Internal Political Chaos

After Pericles died, Athens suffered from "demagogues" (leaders who just told the people what they wanted to hear).
• There were even oligarchic coups (like the "Four Hundred" in 411 BC) where the democracy was temporarily overthrown. It's hard to win a war when you are fighting with yourself at home!

3. The "Persian Factor"

This is a major point for modern historians. Near the end of the war, Persia started giving Sparta gold.
• Why? Because they wanted the Greeks to keep fighting each other.
• This gold allowed Sparta to finally build a navy that could compete with Athens. Without Persian money, Lysander (the Spartan general) might never have won the final naval battle at Aegospotami.

4. The Occupation of Decelea

On the advice of the traitor Alcibiades, the Spartans set up a permanent fort at Decelea inside Athenian territory. This meant Athens couldn't farm their land at all and became totally dependent on imported grain, making them very vulnerable.

Key Takeaway:

Athens didn't just lose; they "beat themselves" through bad decisions (Sicily) and political infighting, but Persian intervention was the final nail in the coffin.

How to Ace the Interpretation Question (AO4)

In the exam, you will be given an unseen modern extract. Follow these steps:
Step 1: Identify the "Argument." What does the modern historian think is the most important reason? (e.g., "The historian argues that Persian gold was the main reason Athens lost.")
Step 2: Bring in the Ancient Sources. Do the ancient writers agree?
• If the extract is about Athenian failure, mention Thucydides on Sicily or Xenophon on the Battle of Aegospotami.
• If it's about the Persian defeat, mention Herodotus and his view on Greek unity.
Step 3: Evaluate. Is the modern historian's view convincing? Does it ignore something important that Plutarch or Thucydides tells us? Or does it explain something the ancient sources were too biased to see?

Quick Tip: Don't worry about memorizing the names of modern historians! You only need to focus on the interpretation they provide in the text on the exam paper.

Common Mistake to Avoid: Don't just tell the story of the war. Always link your facts back to the reasons for victory or failure. Use words like "This proves that..." or "This supports the historian's claim because..."