Answer:
Lincoln tried to free slaves in the border states by buying them. The record bears this out. Lincoln tried in Delaware and won congressional approval to apply the principle to all states. But with no slave owners willing to come to the table, the effort failed.
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Growth of the railroads.The government gave the railroad companies huge amounts of land for every mile of track laid. This land was used to develop new towns and cities, greatly reducing the area of free pasturage available to cattle owners for their herd.
Increasing numbers of new immigrants. Many of these European immigrants set up as sheep farmers, which required much less capital investment than cattle farming. The sheep farmers fenced off their land, further reducing available free pasturage for cattle, and additionally denying access to vital water sources for the cattle herds.
<span> Many Southerners believed that his election was unconstitutional as free blacks in the North were allowed to vote for him.</span>
