What were Abraham Lincoln contribution in the US Civil War?

Answer 1

He finished slavery in America which benefits African Americans.
Coming from a lower strata of society, Abraham Lincoln ushered in a new era in the history of America. His greatest contribution to America was to fasten the chains tied in the legs of the slaves for 200 years.His administrative capability,philosophical thoughts were unique. I recapitulate his letter 'From a Father to a Teacher' in high esteem.

Answer 2

Lincoln was the US president during the war. He took an active role in the military campaigns. He made several changes in the top army leadership and finally discovered Grant. His bold emancipation proclamation helped demoralize the South and energize the anti-slavery people in the North. Lincoln worked hard to keep up support for the war in the north. He visited the front lines on several occasions and did what he could to keep up morale among the soldiers.

Answer 3

Abraham Lincoln and later US President Lincoln was a strict unionist. He believed that keeping the US in tact was more important in 1860 and beyond then resolving any slavery issues. Because of his strong belief that the Union must remain united, he took the military measures to ensure that and he succeeded.