And obviously, he is getting the Greek side of the story. There are no surviving Persian accounts for it. So you might want to take it with a grain of salt, because the accounts of Herodotus do tend to make the Greeks look pretty good. But let's just talk about what happened, because taking it with a grain of salt, it is a fascinating series of stories. So you have Darius is king. You can see the extent of the Persian Empire in 490 BC, or really at the turn of the century, if we were to go back 10 years, to 500 BCE. But they are in control of some folks who are a little bit more rebellious than most of the people that are within the Persian Empire.