How did Darius 1 rule Persia?

Which geographic factor was most important to the development of the early river valley civilizations in the middle east? How does odysseus reveal himself to the suitors? How is polytheism different from monotheism? What are the origins and significance of the keyword "three" in Greek mythology and philosophy? What was invented during the Han dynasty? Are Greek letters used for statistics or for parameters? Who is Greek goddess in triumph? Did the Greek goddess Eris have children? When did Pandora get her box? Which Roman Polanski film did Hugh Grant star in? What was the solution to the problem in the story of orpheus and eurydice? What was Egypt called after Cleopatra and Marc Antony died? Who was Persephones husband and how did she come to be with him? How did the greeks finally get into troy? What are Egypt's geographical defenses? On what vegetable did an ancient Egyptian place his right hand when taken? What customs did the Inca's and the Aztec's share? A large stone coffin? Did Athena have a childhood? Who was titan in the renaissance?