Writing Prompt 9. You have just read the passage Mississippian Time Period ca. 1900 AD to 1550 AD. The Mississippian Time Period was an important time period in the history of Mississippi. In an essay, write about how the characteristics of the time period are still important today. Use evidence from the text to support your response. Your writing will be scored based on development of idea, organization of writing, and language conventions of grammar, usage and mechanics.​