What was Abraham presidency?

Abraham Lincoln was never a president. He was the 16th President of the United States, serving from March 1861 until he was assassinated on April 14, 1865. He is best known for issuing the Emancipation Proclamation in 1863, which freed slaves in the Confederate states and ultimately paved the way for the Thirteenth Amendment to the US Constitution, formally abolishing slavery in the United States. Before his presidency, Abraham Lincoln had served as a member of the Illinois House of Representatives, the US House of Representatives, and on the 8th Circuit U.S. Court of Appeals.