thirty six
When Lincoln took office in March 1861 seven southern states had left the Union.
At the time Abraham Lincoln took office as U. S. President in 1861, the United States consisted of 34 states. That grew to 36 during Lincoln's presidency with the addition of West Virginia and Nevada.
Abe Lincoln
United States Senator from Illinois
The biggest reason is that Abraham Lincoln was against slavery, and the confederate states were for it.
To keep him from abolishing slavery in the south.
Because he wanted to be president of the united states.
36
The 16th President of the United States was Abraham Lincoln. President Lincoln was in office from March 4, 1861 April 15, 1865.
Abraham Lincoln lost his son William Wallace "Willie" Lincoln February 20, 1862 .
The 16th President of the United States was Abraham Lincoln. President Lincoln was in office from March 4, 1861 until April 15, 1865 when he was assassinated.
17 states