I need help with a project

Must include a list of all the resources (minimum of 5 reliable sources) you consulted at the end. Include the URLs if you rely on websites for information. MLA format is acceptable.

Topic: How did the Achaemenid state rule over a long period of time? What were the main aspects of government control that enhanced the power base? What was the role of religion in this development?

Note: 500 words!