This entry from Encyclopedia Brittanica's Guide to Black History features Abraham Lincoln, the 16th president of the United States (1861-65), who preserved the Union during the American Civil War and brought about the emancipation of the slaves. (For a discussion of the history and nature of the presidency, see presidency of the United States of America.). This site, rich in detail and breadth of coverage, includes a wealth of information on other notable African Americans, important events, and much more.