Matching Pairs What were causes of the Civil War?Online version Relate the causes with their corresponding explanation to understand the birth of the Civil War. by Norma García 1 Abraham Lincoln 2 Rights in the States 3 The Dred Scott Decision 4 Uncle Tom's Cabin 5 Slavery 6 The Underground Railway 7 Abolitionist Movement A slave looking for citizenship legally in the Supreme Court whose request was denied since no person with African blood could become a U.S. citizen. By the early 1830s, ideas became more strident. People were following a higher law not the Constitution. Freedom, not being a fugitive was the aim. Some abolitionists actively helped runaway slaves to escape through this path. Even when slavery was forbidden by the federal government some States refused, there was a struggle over political power. Opponent of the expansion of slavery but said he would not interfere with it where it existed until he became president and slavery was banned. A book published in 1852, became a best seller representing the evils of slavery. Some 4 million Africans and their descendants were slave laborers in the South mainly in plantations.