16. Darius the Great, a tolerant ruler and able military leader, became involved in war with Greece after which event in 499 BC?
From Quiz Persian History and Culture
Answer:
Ionian Revolt
The policy during the First Persian Empire was typically one of fairness and toleration to people who were conquered, as long as they kept the peace, paid their taxes, and fulfilled their military obligation. When Cyrus the Great conquered Lydia, the Greek city-states in the western part of Asia Minor, called Ionia, that were considered to be part of Lydia, became part of the First Persian Empire. The area was controlled by the satrap, or governor, who lived in Sardis, and those independent Greeks in Ionia were not happy.
In 499 BC the leader of Greek colony of Miletus, Aristagoras, joined with the Satrap of Sardis in an unsuccessful attempt to conquer a Greek island. To turn attention away from his failure, Aristagoras led a revolt and burned the city of Sardis. The Persians, in turn, did the same to Miletus in 495 BC. The Ionian Revolt was just the beginning of a series of conflicts between the Persians and Greeks called the Greco-Persian Wars that lasted from 499 BC-449 BC.