Industrialization in the north caused the civil war. The industrial revolution in the North, during the first few decades of the 19th century, brought about a machine age economy that relied on wage laborers, not slaves. I hope that this is the answer that you were looking for and it has helped you.
In chronological order the events are in the order 4, 1, 2, 3
Medicine Lodge Treaty was signed 1867.
Wash*ta (it thinks it's a curse word) Massacre: 1868
Red River War: 1874-75
Reconstruction treaties: 1866
He believes, in contrast to the 14th amendment, that the U.S. only includes the individual States such as Virginia, New York, etc. :)