The Ancient Persians modern Iran are more familiar to us than the other empire builders of Mesopotamia or the Ancient Near East, the Sumerians, the Babylonians, and the Assyrians, not only because the Persians were more recent, but because they were amply described by the Greeks. Just as one man, Alexander of Macedon Alexander the Great, ultimately wore the Persians down quickly in about three years), so the Persian Empire rose to power quickly under the leadership of Cyrus the Great.
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Darius also had visions of pushing Persia’s borders as far westward as Egypt and east as the Indus River. The city-state of Ionia of Asia Minor was already under Persian rule, but they were unhappy with the conditions of their lives. The previous ruler of Persia, Cyrus the Great, had onquered it before Darius had taken the throne. During the 5th century BC, Darius led Persia in the Persian Wars, an attempt to conquer all of Greece. The wars lasted 20 years, from 499 BC to 479 BC. It began when a local tyrant, a ruler of Miletus, organized a revolt against Darius. Darius crushed the revolt, although lost the war in the long run. His forces were defeated by the Greeks at the historic Battle of Marathon in 490. Darius died before the wars were completely over. His son and his successor, Xerxes, attempted to fulfill his father’s plan of the Persian expansion. Eventually, however, Xerxes watched his army be defeated in the long run by the Greeks, and a year after he retreated, the wars were over and Persia had lost.