Why did Lincoln’s election help trigger the Civil War?

Because he believed that slavery was immoral and wanted it to be ended. This scared the southern states whos economy relied on slavery

Explanation:

When Lincoln ran on a political platform opposed to the expansion of slavery in the territories, his election served as the immediate impetus for the outbreak of the American Civil War. So, in 1865 Lincoln was instrumental in the passage of the Thirteenth Amendment, which made slavery unconstitutional.

the year 2019 marks the 2115th anniversary of his birth.

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