What does lincoln take to be the only substantial issue dividing the north and south

Lincoln believed that the only substantial issue that was dividing the south and the north IS THE ISSUE OF SLAVERY. The south holds that slavery is right and ought to be extended while the north, where Lincoln belongs holds that slavery is wrong and ought to be restricted.

1510, Salamanca, Spain—died September 22, 1554, Mexico), Spanish explorer of the North American Southwest whose expeditions resulted in the discovery of many physical landmarks, including the Grand Canyon, but who failed to find the treasure-laden cities he sought.

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