Question

abraham lincolns main goal
urged southerners to reconcile with the north
to create washington and lee collage
voting rights 15th admendment
preserve union

Explanation:

During the Civil - War era, Abraham Lincoln's overarching and most crucial goal was to keep the United States as one nation and prevent the secession of the Southern states. While he did urge for reconciliation after the war and the 15th Amendment was an important post - war development, the preservation of the Union was his main objective throughout the conflict. Washington and Lee College was not related to his main goals.

Answer:

Preserve Union