The Civil War In Four Minutes. Abraham Lincoln Presidential Library and Museum Online Store. Civil War Battles & Civil War Casualties Interactive Map. Civil War Battlefields @ National Geographic Magazine. Tripline. Causes of the Civil War Slavery or opposition to the Federal government. The Alfred Whital Stern Collection of Lincolniana - Lincoln's Letters (American Memory from the Library of Congress) Civil War Timeline. Civil War Battles & Civil War Casualties Interactive Map. La guerre de sécession en 4 minutes.