Lesson 4: Fighting the Greco-Persian Wars

Key Idea

Before its wars with Greece, the Persian Empire became the largest in the world. A powerful king named Cyrus the Great conquered many lands, creating a vast territory that stretched from the Indus River to Egypt.

Later rulers like Darius organized the empire into provinces to make it easier to govern. He and his son, Xerxes, commanded a huge army and collected taxes from their many subjects. This powerful empire soon came into conflict with the Greek city-states.

Key Idea

The Greco-Persian Wars began in 499 B.C.E. when Greek city-states in a region called Ionia rebelled against the Persian Empire. These cities were unhappy with foreign rule and wanted to be independent again.

The Ionians asked for help from mainland Greece. Athens sent ships and soldiers to support the Ionian Revolt. This support angered the Persian king, Darius.

Key Idea

The Greeks were outnumbered by the huge Persian army. To win, they relied on smart military strategy and their knowledge of the land and sea. They used geography to create advantages in major battles.

At the Battle of Marathon in 490 B.C.E., a clever plan allowed the Athenians to surround the Persians. Greek soldiers also had superior weapons, like heavy bronze armor and long spears, which helped them defeat the lightly armed Persian infantry.

Key Idea

The massive Persian army threatened all of Greece. Individual city-states, which often fought each other, knew they could not defeat the invaders alone. They faced a choice: unite or be conquered.

In response, around 481 B.C.E., many city-states formed a defensive alliance. This team-up was led by two powerful rivals, Athens and Sparta. Athens contributed its large, skilled navy, while Sparta provided its legendary land army.