Hello!
I believe that the African Union has not yet implemented a common currency for the entire continent.
The divergence between slavery and abolitionists led the United States into the Civil War. The Missouri crisis over whether or not the region would be a slave was one of the antecedents of the war. In the videos, Tamis and his advisor, Rafael Marquese, insert in a global context these moments of the slavery crisis in the USA and narrate episodes that, like the Missouri crisis, had international implications beyond its protagonists. This is the case with the nullification crisis.
The narrative involves social, political and economic history and also brings contributions to the social sciences and international relations.
I'm thinking your question means to ask, "<em><u>What</u></em><em> is popular sovereignty?"</em>
"Popular sovereignty" means the people are in charge of establishing a government over themselves.
The founding fathers of the United States adopted the idea of popular sovereignty from Enlightenment philosophers like John Locke (of England) and Jean-Jacques Rousseau (of France).
The Declaration of Independence (1776), written primarily by Thomas Jefferson, asserted the concept of popular sovereignty. The Declaration insisted that people institute governments in order to secure their rights, and that governments get their authority from the consent of the governed. "Whenever any Form of Government becomes destructive of these ends," the Declaration of Independence said, "it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."