USA HISTORY

Detailed explanation-1: -Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders’ resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.

Detailed explanation-2: -The Civil War confirmed the single political entity of the United States, led to freedom for more than four million enslaved Americans, established a more powerful and centralized federal government, and laid the foundation for America’s emergence as a world power in the 20th century.

Detailed explanation-3: -The Union’s victory over the Confederacy not only dealt a fatal blow to slavery in the United States, but it served as a catalyst to human rights reform across the world.

Detailed explanation-4: -While the agricultural, slave-based Southern economy was devastated by the war, the Northern economy benefited from development in many of its industries, including textile and iron production. The war also stimulated the growth of railroads, improving transportation infrastructure.