And they were really, really mad that these Ionians were helped by the Athenians and the Eritreans. And so Darius, the king of kings, goes off to try to conquer and put down the Athenians and the Eritreans. The first time he sends a fleet in 492 BCE, it's destroyed by a storm. And we'll see, this is not the last time that at least part of a Persian fleet is destroyed by a storm. Then in 490, he sends a fleet again. And then he is defeated by the Athenians at Marathon. And we saw that right over there.