The sixteenth amendment (amendment XVI)
The Great Awakening was an evangelical and revitalization movement that swept Protestant Europe and British America, and especially the American colonies in the 1730s and 1740s, leaving a permanent impact on American Protestantism.
Depending on what mjesurement it is in miles its like about 2.4 miles
Black nationalism, or "Black Power" as it is sometimes known focused on black people improving their own communities, rather than fighting for full integration into American society as a whole.