), the capital of the Persian Empire.
Reflecting the wealth and the mugreeting card lticultural dimension of the Persian Empire, Darius initiated the building of the Persepolis Palace. For its construction, artisans and materials were gathered from different corners of the empire. Another project undertaken by Darius was the royal road, the world's longest, extending 1,500 miles (see map). Due to an extensive network of relays, postmen could travel the road in six to nine days, whereas normal travel time was three months. The motto of the Persian postal service became memorable: stoped by neither snow, rain heat or gloom of night. The US postal service also adopted this motto and the famous Pony Express mail delivery resembled the original Persian design. The origins of polo date back to this time. Persian nobility played an early form of polo for both sport and combat training.
A battered guardian of persepolis
490 - 479 BC
In their wars with Persia, the Greek city-states were never a threat to the Persian heartland. What Persia did not achieve through war, it obtained through diplomacy. After the wars ended, Persian kings successfully played the Athenians and Spartans against each other for 150 years. Persia's financial and naval assistance was instrumental in Sparta's victory over Athens in the Great Peloponnesian War. Afterwards, Persia began supporting the Athenians. The Persian influence over the two Greek city-states was such that the Persian King Artaxerxes II was asked to mediate between them, leading to the King's Peace of 387 BC.
550 - 334 BC
The Persian Empire became the dominant world power for over two centuries. It made possible the first significant and continuous contact between East and West. It was the world's first religiously tolerant empire and consisted of a multitude of different languages, races, religions and cultures. Prior to the rise of the Roman Empire, it set a precedent for the importance of the rule of law, a powerful centralized army and an efficient and systematic state administration. However, the greatest legacy of the Persian Empire was that it demonstrated for the first time how diverse peoples can culturally flourish and economically prosper under one central government.