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Darius I

[duh-rahy-uh s]
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noun
  1. Darius Hystaspesthe Great, 558?–486? b.c., king of Persia 521–486.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for darius i

Darius I

noun
  1. known as Darius the Great, surname Hystaspis. ?550–486 bc, king of Persia (521–486), who extended the Persian empire and crushed the revolt of the Ionian city states (500). He led two expeditions against Greece but was defeated at Marathon (490)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012