The Battle of Thermopylae was of course written by the classical Greek author, Herodotus, who lived in the Persian city of Halicarnassus. His book, 'The Histories' became part of Western folklore only recently. It was not until about 1850 that America embraced Herodotus as the leading authority on Persian history.
Before 1850, however, the West had a very favorable impression of the Persian Empire. That's because the West's main source for Persian history was