Answer:
The primary source document that could help a historian understand why the US Civil War started is a Charleston Mercury editorial published in 1860 because it contains factual accounts of the events during that time.
Freedom of speech (i don't know whats your question exactly).
hope this helps :)
Modernity resulted in a number of social and economic
changes in America. As the economy boomed, wages rose for most Americans and
prices fell, resulting in a higher standard of living, there was an increase in
consumerism. As a result, there was a change in the way they dressed, thought,
and acted in a manner that shocked their more traditional parents.
The correct answer is
D) settling conflicts associated with the settlement of western lands
(The issue over the western lands was solved under the Articles.)