Abraham Lincoln: Abraham Lincoln was the 16th President of the United States who was elected in 1860. His election played a significant role in triggering the Southern secession movement due to his opposition to slavery.
Confederate States of America: The Confederate States of America, also known as the Confederacy, was formed by eleven southern states that seceded from the Union in response to Abraham Lincoln's election. It existed from 1861 to 1865.
Secession: Secession refers to the act of formally withdrawing or separating from an organization or alliance. In this context, it specifically relates to how certain southern states separated themselves from the United States during the Civil War era.