Final answer:
Yes, it is true that a state could return to the Union when 10% of its voters in the 1860 election had taken an oath of loyalty. The policy, known as the Ten Percent Plan, was developed by President Lincoln during the Civil War to reintegrate Southern states.
Step-by-step explanation:
The question is asking if it's true that a state could return to the union when 10 percent of its voters in the 1860 election had taken an oath of loyalty to the Union. This is true. This policy, known as the Ten Percent Plan, was created during the Civil War by President Abraham Lincoln. The purpose was to enable the quick reintegration of Southern states after the end of the Civil War. It provided that when 10% of the voters of a state who had participated in the 1860 election had taken an oath of loyalty to the Union and established a government abolished slavery, that state could reapply for admission into the Union.
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