American Civil War (also known by other names) was a war (though a Declaration of War was never issued by Congress) fought in the United States from 1861 to 1865. As a result of the long-standing controversy over slavery, war broke out in April 1861, when Confederate forces attacked Fort Sumter in South Carolina, shortly after U.S. President Abraham Lincoln was inaugurated. The nationalists of the Union proclaimed loyalty to the U.S. Constitution. They faced secessionists of the Confederate States, who advocated for states' rights to expand slavery.

American Civil War - America’s bloodiest clash, the sectional conflct of the Civil War (1861-65) pitted the Union against the Confederate States of America and resulted in the death of more than 620,000, with millions more injured.

American Civil War, also called War Between the States,   four-year war (1861–65) between the United States and 11 Southern  states that seceded from the Union and formed the Confederate States of  America.

Crittenden Compromise - was an unsuccessful proposal introduced by United States Senator John J. Crittenden (Constitutional Unionist of Kentucky) on December 18, 1860. It aimed to resolve the secession crisis of 1860–1861 by addressing the fears and grievances about slavery that led many slave-holding states to contemplate secession from the United States.

Slavery, Not States' Rights, Caused Civil War Whose Political Effects Linger - All this time later, that war still echoes powerfully through American politics. You could draw a straight line from that war through Reconstruction to Jim Crow segregation to the Civil Rights era, then affirmative action and on to the election of the first African-American president up to the present moment. They are all linked.