Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th President of the United States from 1861 to 1865. During the American Civil War, he worked to keep the United States together and end slavery.
- EL Civics: Abraham Lincoln
- si.edu: Preparing the Oath: The 1800s
- USCIS: Abraham Lincoln
- uscitizenpod: Washington and Lincoln Quiz