The Bruce family favors the cave on Rathlin Island off the north Antrim coast because in the 14th century it was owned by his Irish mother. At the end the story is historic reality, partly legend, the border is vague and much stays unclear.
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.
Answer:
two candidates getting more votes strengthening the political parties of John Quincy Adams and Andrew Jackson, also the beginning of slander campaigns against other candidates