Purpose and Focus of the Paper: Using the Greenberg reader (Manifest Destiny and American Territorial Expansion), write a 3-4 page analytical paper that examines any theme associated with Manifest Destiny and/ or the causes of American territorial expansion from the time period that is under study in this course. Explore and discuss a minimum of three primary documents from the Greenberg reader. Please be sure to also read the introduction to the book (pages 1-39) to gather relevant historical context your sources pertain to. Synthesize the findings from these documents into a central claim that illustrates your understanding of your selected theme. Please note, all documents are located in part two of the Greenberg reader. The vignette proceeding each primary document has italicized font and is a description authored by Amy Greenberg, and it is there to put the primary document/ source into its context. Lastly, below are some examples of possible themes to examine in your paper.