So the Greeks were more of a thorn in the side, but we get our history from them, or a lot of our history from them, so we get their account of things. Now, once you have Xerxes, then after Xerxes, you have Artaxerxes right over here, and then you have a little bit of a squabble for the throne, and then Darius II. There's one thing that you see over 200 years of Achaemenid rule is that most people, after Darius the Great, are named either Xerxes, Artaxerxes, Darius II, III, IV, or Darius II or III, at least, not IV, Artaxerxes, Artaxerxes II, Artaxerxes III, so it can get a little confusing, but the reason why I even did this for myself to see when all of these people lived and when they ruled is to have a good sense of what was going on and how Darius II lived at a different time than, for example, Darius I or Darius the Great. The other thing worth mentioning, because you'll hear this in various history classes when you talk about the Persian Empire, is the great cities of the Persian Empire. Osiris the Great, he establishes a capital at Pasargidae right over here. You have Cambyses, establishes a capital at Susa. Susa is one end of the great royal highway that goes from Sardis all the way to Susa right over there.