Which issues played the greatest role in dividing the north and south in the years leading up to the civi war

Explanation:

While Northern states wanted to abolish slavery, Southern states defended slavery. This difference was the biggest reason that led to the Civil War.

Northern States focused their economy on industries, they were an urban society were slavery had practically disappeared and most people worked on factories.

Southern states focused their economy on agriculture, they relied on slaves to work on their plantation crops of cotton, rice and tobacco.

Southern states felt threatened with the election of Abraham Lincoln in 1860, fearing that their way of life would end because he wanted to abolish slavery, this caused the Southern secession that led to the Civil War.

explanation: we can only guess at how our actions may be perceived in the future. doing something really big like killing lots of people, saving lots of people, affecting the lives of lots of people is a sure fire way of being remembered in historical records. we can also make a difference in the history records by being a small influence on something bigger, whether that is as a civil servant, scientist or artist.

of course you could argue that we all affect history just as tiny cogs in a   bigger machine.

if you mean how do people influence our opinions of things which have already happened, then simply by writing a book which looks at things form a different perspective and trying to convince people that this perspective is more accurate or truthful. people do it all the time i.e. richard the third was a terrible or was he? plenty would disagree, it's just that their views aren't the most widely known.n:

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.