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Persian Empire Timeline
The Persian Empire — founded by Cyrus the Great around 550 BC — was the largest empire the ancient world had ever seen, stretching from Greece to India and governed through a revolutionary system of provinces, roads, and religious tolerance.
Put the Events in Order
The events shuffled, to number from first to last. With answer key.
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When Cyrus the Great marched his army out of Persia around 550 BC, he founded something the world had never seen before: an empire that stretched from the Aegean coast to the edges of India, held together not just by force but by a deliberate policy of tolerance. Conquered peoples were allowed to keep their religions, languages, and local rulers. Cyrus even freed the Jews from Babylonian captivity and helped them return to Jerusalem. His successors Cambyses and Darius I pushed the empire further — into Egypt, along the Nile, and up to the doorstep of Greece. Darius built the famous Royal Road, nearly 2,700 kilometers of paved highway that allowed messages to travel from Susa to Sardis in a week. But two clashes with Greece — Marathon and Salamis — stopped Persian expansion westward, and the wars left a lasting rivalry. That rivalry ended dramatically in 334 BC when a Macedonian king named Alexander crossed into Asia and, in just seven years, conquered the entire Persian Empire.
- 550 BC
Cyrus the Great Founds the Empire
The Persian king Cyrus II defeats the Median king Astyages and then conquers the kingdoms of Lydia (in modern Turkey) and the Medes, creating the largest empire the world had yet seen.
Why it mattered: Cyrus's rapid conquests established Persia as the dominant power from the Aegean to Central Asia; his policy of tolerating local customs and religions made the empire far more stable than previous conquests ruled purely by force.
- 539 BC
Cyrus Conquers Babylon
Cyrus captures Babylon — then the most important city in the world — with almost no resistance; he issues the Cyrus Cylinder, a clay tablet declaring that he will respect the city's gods and free peoples deported by the Babylonian kings, including the Jews.
Why it mattered: The Cyrus Cylinder is often called the world's first declaration of human rights; Cyrus's conquest of Babylon gave Persia control of Mesopotamia and earned him a reputation for justice that made other cities more willing to surrender.
- 525 BC
Cambyses Conquers Egypt
Cyrus's son Cambyses II defeats the Egyptian pharaoh at the Battle of Pelusium and absorbs Egypt into the Persian Empire, extending Persian rule across the entire eastern Mediterranean coast.
Why it mattered: Adding Egypt gave Persia its wealthiest province and its Mediterranean coastline, completing the empire's control of the ancient Near East and making it the most powerful state in the world.
- 522–486 BC
Darius I Reorganizes the Empire
Darius I crushes a series of rebellions after Cambyses' death, then reorganizes the empire into 20 provinces called satrapies, each governed by a royal-appointed satrap; he builds the Royal Road from Sardis to Susa and begins construction of Persepolis.
Why it mattered: Darius transformed a collection of conquered territories into a functioning empire with standardized laws, coinage, and communication — the Royal Road's relay messengers could carry a message nearly 2,700 km in a week, giving the emperor unprecedented control over distant provinces.
- 490 BC
Battle of Marathon
A Persian army sent by Darius to punish Athens for supporting a Greek rebellion lands at Marathon and is defeated by a smaller Athenian force, who then famously march back to Athens to prevent a second Persian landing.
Why it mattered: Marathon was a shock — the supposedly invincible Persian army had been defeated by a Greek city-state — and it inspired Greek confidence while humiliating Darius; his son Xerxes would spend a decade planning revenge.
- 480 BC
Xerxes Invades Greece
The Persian king Xerxes leads a massive invasion of Greece; 300 Spartans hold the pass at Thermopylae long enough for Greece to prepare; Xerxes burns Athens, but the Greek navy defeats the Persian fleet at Salamis and Xerxes retreats.
Why it mattered: The battles of Thermopylae and Salamis became defining moments in Western history — Salamis ended Persia's chance of conquering Greece and saved the Greek city-states that would produce Socrates, Plato, and the foundations of Western philosophy and democracy.
- 449 BC
Peace of Callias
Athens and Persia sign the Peace of Callias (or a formal agreement of mutual non-aggression), ending fifty years of conflict and establishing the Aegean Sea and western Anatolia as roughly the boundary between Greek and Persian spheres.
Why it mattered: The peace recognized Persia's failure to conquer Greece and allowed both sides to focus internally; for Athens it signaled the start of its Golden Age — the great age of the Parthenon, Sophocles, and Socrates.
- 334–330 BC
Alexander the Great Conquers Persia
The Macedonian king Alexander III crosses into Anatolia, defeats Persian forces three times — at Granicus (334 BC), Issus (333 BC), and Gaugamela (331 BC) — captures Persepolis and burns it, then pursues the last Persian king Darius III until Darius is killed by his own nobles in 330 BC.
Why it mattered: Alexander's conquest ended the 220-year Achaemenid dynasty and spread Greek language and culture across the entire former Persian Empire — from Egypt to Afghanistan — beginning the Hellenistic Age that shaped the ancient world for the next three centuries.
Persian Empire Quiz
Check what you learned — read on screen, or download the Quiz with Answer Key above for a worksheet version.
Who founded the Persian (Achaemenid) Empire around 550 BC?
- A) Darius I, who divided the empire into twenty provinces
- B) Artaxerxes I, who signed a peace with Athens
- C) Cambyses II, who defeated the pharaoh of Egypt
- D) Cyrus the Great, who conquered the Medes and Lydians
What was historically significant about the Cyrus Cylinder?
- A) It described Cyrus's policy of letting conquered peoples keep their religions
- B) It described Darius's plan for dividing the whole empire into twenty provinces
- C) It listed the taxes that each province owed to the Persian king every year
- D) It recorded the peace treaty that ended the wars between Persia and Athens
What were the Persian provinces called, each governed by a royal-appointed official?
- A) Satrapies
- B) Prefectures
- C) Cantons
- D) Caliphates
What happened at the Battle of Marathon in 490 BC?
- A) A Persian army defeated the Athenians and then burned their city
- B) A Persian fleet was destroyed by the Greek navy in a narrow strait
- C) A Persian army was defeated by the Athenians, which shocked Persia
- D) A Persian army was held back for days by 300 Spartans in a pass
Which Persian king led the great invasion of Greece in 480 BC?
- A) Cambyses II, son of Cyrus II
- B) Xerxes, son of Darius I
- C) Darius III, the last king
- D) Cyrus II, the first king
What was the Royal Road built by Darius I?
- A) A sea route from the Persian Gulf to Egypt that sped up the grain trade
- B) A road of nearly 500 km from Persepolis to Babylon used for royal parades
- C) A road from Susa to Athens built to move the army of Xerxes into Greece
- D) A road of nearly 2,700 km from Sardis to Susa that sped up communication
What was Persepolis?
- A) The capital city of Babylonia, captured by Cyrus the Great with almost no resistance
- B) The port city of Egypt, where Cambyses II defeated the pharaoh in battle
- C) The ceremonial capital of Persia, built by Darius I and burned by Alexander
- D) The capital of Lydia, where the Royal Road began in western Anatolia
Who ended the Persian Empire?
- A) Pericles of Athens, who conquered Persia after the Battle of Salamis
- B) Alexander the Great of Macedonia, who conquered Persia between 334 and 330 BC
- C) Leonidas of Sparta, who conquered Persia after the Battle of Thermopylae
- D) Julius Caesar of Rome, who conquered Persia between 58 and 50 BC
Show answer key
1. D · 2. A · 3. A · 4. C · 5. B · 6. D · 7. C · 8. B
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How to print
Every sheet above is a ready-to-print PDF sized for US Letter paper (8.5 × 11"). The fill-in version keeps the dates and gives students lines to write each event, with the events listed at the bottom to place — good for review. The ordering activity and the quiz each end with an answer key.
Frequently asked questions
How did the Persian Empire treat conquered peoples?
The Persian approach was remarkably tolerant by ancient standards. Rather than destroying local religions and cultures — as the Assyrians and Babylonians often did — Cyrus and his successors allowed conquered peoples to keep their own gods, languages, and local rulers. Cyrus famously freed the Jewish people from Babylonian captivity and helped them rebuild their temple in Jerusalem. Satraps (provincial governors) were often local nobles rather than Persians. This tolerance made the empire more stable, but also meant it lacked a single unifying culture — a weakness Alexander would exploit when he portrayed himself as a liberator rather than a conqueror.
Why couldn't the Persian Empire conquer Greece?
Geography and Greek unity. Greece's mountainous terrain and many harbors made it difficult to conquer by land. At Marathon, the Greeks proved that disciplined infantry (hoplites in tight formation) could defeat the more lightly armed Persian infantry. At Salamis, the Greeks used their knowledge of local waters to trap and destroy the Persian fleet. But the deepest problem was that Persia's strength — governing huge territories with light administration — became a weakness when facing a small determined enemy on its home terrain. After Salamis, further conquest was simply not worth the cost.
What paper size should I print this on?
The timeline is sized for standard US Letter paper (8.5 × 11 in.). The Download PDF button gives you a print-ready file that fits the page automatically.