Abraham Lincoln played a key role in Black history through his leadership during the Civil War and his efforts to abolish slavery in the United States. As the 16th President of the United States, Lincoln issued the Emancipation Proclamation on January 1, 1863, declaring that all enslaved individuals in Confederate-held territory were to be set free. This was a significant step towards ending slavery and advancing the cause of freedom for African Americans.

Furthermore, Lincoln also supported the passage of the 13th Amendment to the Constitution, which formally abolished slavery throughout the country. The amendment was passed by Congress on January 31, 1865, and ratified later that year.

Although Lincoln's legacy in Black history is complex and has been subject to debate, his actions to end slavery and his role in preserving the Union during the Civil War have secured his place as a significant figure in the African American struggle for freedom and equality.