What was Lincoln's main reason for starting the Civil War? Please explain your answer fully. please help

The main reason for starting the Civil War was to preserve the union.

Explanation:

Although many believe that Lincoln started the war due to his feelings towards slavery, it was actually because he felt that as the nation's president, it was his obligation to preserve the union no matter the cost.

the federalist party which advocated strong centralization dominated the united states government till 1800. so 1800 election transformed the power from one party to another party for the first time and was thus a turning point in american history. so jefferson called it "revolution of 1800".

explanation:

a agree i agree becuase it is very importnat for example it can tlel you about your past for exmaple   the first culture was the semerians which people are sitll tryignt o uncover there secrets the wall is just anohter treasure that has thousnads of secrets in it to be uncovered