Explanation:
An epiphany is a moment of sudden understanding something very important. This is mostly a scientific breakthrough like the discovery of black spot by Albert Einstein
In the United States, sociology was first taught as an academic discipline at the University of Kansas in 1890, at the University of Chicago in 1892, and at Atlanta University in 1897.
Source (www.sparknotes.com/sociology/introduction-to-sociology/section1.rhtml)
<span> The Civil War ended to most nullification attempts.
Nullification relied on principles of states' rights that were viewed as no longer viable after the Civil War.
</span><span> Southern states use in the 1800s to nullify tariff laws were states rights
hope this helps</span>