Which happened first?

a. President Abraham Lincoln issued the Emancipation Proclamation.
b. The battle of Antietam was fought in Maryland.

a. The Civil War began.
b. John Brown led a raid on Garper's Ferry in Virginia.

a. The Supreme Court reached a decision in the case of DRed Scott v. Sanford.
b. The Kansas-Nebreaska Act was passed by Congress.

a. Abraham Lincoln was elected President of the United States.
b. Southern states began to secede from the Union.

a. Rutherford B. Hayes was elected President of the United States.
b. Thh Reconstruction Era ended when federal troops were with drawn from the South.

1 answer

http://en.wikipedia.org/wiki/Emancipation_Proclamation

http://en.wikipedia.org/wiki/Battle_of_Antietam

http://en.wikipedia.org/wiki/American_Civil_War

http://en.wikipedia.org/wiki/John_Brown's_raid_on_Harpers_Ferry

Those sites give you the first two answers. You can Google the other events to find their dates.