Abraham Lincoln played a significant role in Black history as the President of the United States during the Civil War, a tumultuous period in American history that ultimately led to the abolition of slavery. Lincoln issued the Emancipation Proclamation in 1863, which declared that all slaves in Confederate-held territories were to be set free. This was a crucial step towards ending slavery in America.

Lincoln's commitment to ending slavery led to the passage of the 13th Amendment to the Constitution, which abolished slavery in the United States. He is remembered as the President who presided over the country during a time of great crisis and made the bold decision to fight for the freedom of enslaved African Americans.

Despite his legacy as the "Great Emancipator," Lincoln's views on race and equality were complex and evolved over time. While he believed in the abolition of slavery, he also expressed ideas that were paternalistic and at times discriminatory towards African Americans.

Overall, Abraham Lincoln's actions as President were instrumental in shaping the course of Black history in America, ultimately leading to the end of slavery and the beginning of a new era of freedom and civil rights for African Americans.