Question

Why did the Battle of Thermopylae become legendary?

The Greeks won a surprise victory, and the Persians retreated.

The battle caused the Peloponnesian Wars between Athens and Sparta.

Dozens of Spartan warriors held off the entire Persian army for three days.

A Greek navy led by Themistocles trapped and destroyed the Persian navy.

Answer 1

The answer to your question is Dozens of Spartan warriors held off the entire Persian army for three days.