What was one important thing that Abraham Lincoln did?

Abraham Lincoln's leadership during the Civil War is a pivotal aspect of American history. He served as the President from 1861 to 1865, a time when the nation was divided between the North and the South over issues including states' rights and slavery. Lincoln's role was crucial in maintaining the Union, and he implemented strategies that sought to preserve the country despite immense challenges.

His leadership included making significant decisions related to military strategy, funding the war efforts, and delivering speeches that aimed to unify the nation. The conflict ultimately resulted in the preservation of the United States, guiding it towards eventual reconciliation after the war. Lincoln's commitment to ending slavery, symbolized through his issuing of the Emancipation Proclamation, was also central to his presidency, but leading the country during this tumultuous time is often considered one of his most vital contributions to American history.