Respuesta :

1. Missouri Compromise March 3, 1820

2. Tariff of Abominations May 19, 1828

3. Compromise of 1850

4. Uncle Tom's Cabin published 1852

5. Kansas-Nebraska Act 1854

6. Dred Scott Decision 1857

7. Lincoln Elected 1860

8. Ft. Sumter fired upon April 12, 1861