Union got control of Fort Sumter and Confederacy forces did not want the Union on southern soil which was the start of the Civil War.
On Sharpsburg, Maryland the Union and Confederacy had a war.
Freedom of slaves in the south when the Union took control.
Victory for Union when against Confederacy which was at Vicksburg, Mississippi.
In Gettysburg the Conferderacy and Union had a war.
A famous speech by Abraham Lincoln.
When the Union and Conferderacy made a treaty of peace.
When John Wilkes Booth killed President Abraham Lincoln.