American Military University The Westward Expansion 1860 to 1890 Essay This essay is a “think piece” to interpret, synthesize and analyze what you see on t

American Military University The Westward Expansion 1860 to 1890 Essay This essay is a “think piece” to interpret, synthesize and analyze what you see on the map.( https://pbslm-contrib.s3.amazonaws.com/WGBH/conv19… ) and create a well organized argument. 
INSTRUCTIONS: Once you have the map open, click on the boxes for Major Cities, Railroad Networks, Improved Agricultural Land, and States and Territories.  At the bottom of the map, you will notice the decades 1860, 1870, 1880, and 1890.  Click on each of these decades in succession and you will see the ways in which the country changed.
Essay is a 3 page paper, using atleast 2 academic sources, Chicago format, title and cover page w/ a brief description of paper, and a bibliography at the end of paper.