Abraham Lincoln played a significant role in Black history as the president who issued the Emancipation Proclamation in 1863, which declared all enslaved people in Confederate-held territory to be forever free. This action marked a turning point in the Civil War and underscored the Union's commitment to ending slavery.

Additionally, Lincoln's advocacy for the passage of the 13th Amendment to the Constitution, which abolished slavery nationwide, further solidified his legacy as a champion for the rights and freedom of Black Americans.

Despite his accomplishments, it is important to note that Lincoln's views on race and equality evolved over time. While he opposed the expansion of slavery into new territories, he initially believed in the colonization of freed Black people outside of the United States. However, his interactions with prominent Black leaders, such as Frederick Douglass, influenced his thinking and eventually led him to embrace the idea of Black citizenship and equality.

Overall, Abraham Lincoln's actions during his presidency had a profound impact on Black history, paving the way for the eventual end of slavery and the beginning of a new chapter in the fight for civil rights and equality for all Americans.