Which group did Cyrus the Great overthrow when he founded the Persian Empire

Cyrus led a revolt against the Median Empire and by 549 BC he had completely conquered Media. He now called himself the "King of Persia." Cyrus continued to expand his empire.

Explanation:

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operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings