The iconic American figure known for his role as the Great Emancipator is Abraham Lincoln. As the 16th President of the United States, he played a crucial role during the Civil War and is best remembered for his efforts to abolish slavery. Lincoln issued the Emancipation Proclamation in 1863, which declared the freedom of all enslaved people in Confederate states. His commitment to preserving the Union and promoting equality has solidified his legacy as a key figure in American history.