The First day at Gettysburg by James Walker. Public Domain.
See the books at 973.3 in the library. This is the Dewey number for the American Civil War and Abraham Lincoln.
For the topic of Imperialism and Slavery, books are located at 960 (History of Africa).
An Introduction to American History, 1860-1990 by 
History of Slavery by 
The Slave Trade by 
The Struggle for freedom: 1770 to 1870 by 
The American Civil War by 
The American Civil War (1) by 
The American Civil War (2) by 
The American Civil War (3) by 
The American Civil War (4) by 
History Reference Center offers full text from more than 1,620 reference books, encyclopedias and non-fiction books, cover to cover full text for more than 150 leading history periodicals, nearly 57,000 historical documents, more than 78,000 biographies of historical figures, more than 113,000 historical photos and maps, and more than 80 hours of historical video.
A great deal of information is available on this topic. It is a topic which has journals devoted to it, and historians regularly contribute articles about the American Civil War..Please note that this version of Encyclopedia Britannica is excellent for this topic- try looking up American Civil War Reconstruction...JSTOR is an excellent source of academic articles.
The Gettysburg address 1863. Source is Wikimedia Commons.
Advertisement for a slave auction in Charleston, 1769. Source is Wikimendia Commons.
Klan parade, Virginia 1922. Image from Wikimedia Commons
