The document outlines key events and developments regarding African Americans during the American Civil War, beginning with Lincoln's election and the South's secession in 1860-1861. It then details how the Union and Confederacy gradually adopted policies that affected slavery and the use of African American troops, such as the Emancipation Proclamation of 1863 and the recruitment of all-black regiments. By the end of the war in 1865, over 186,000 African Americans had served in the Union army, with more than 38,000 losing their lives.