The American Civil War was a pivotal event in U.S. history, fought from 1861 to 1865, primarily over issues of slavery and states' rights. (KC-5.2.I)
Abraham Lincoln was the 16th President of the United States and served from March 1861 until his assassination in April 1865, thus leading the nation through the majority of the Civil War. His leadership was crucial in preserving the Union and beginning the process that led to the abolition of slavery.