from The American Heritage® Dictionary of the English Language, 4th Edition

  • Darius I Known as "Darius the Great.” 550?-486 B.C. King of Persia (521-486) who expanded the empire, organized a highly efficient administrative system, and invaded Greece, only to be defeated at the Battle of Marathon in 490.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. king of Persia who expanded the Persian Empire and invaded Greece but was defeated at the battle of Marathon (550-486 BC)


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