I think it's A nucleus because it is the control center of it
Dollar Diplomacy, foreign policy created by U.S. Pres. William Howard Taft (served 1909–13) and his secretary of state, Philander C. Knox, to ensure the financial stability of a region while protecting and extending U.S. commercial and financial interests there.
George Washington was the First historian to write exclusively about the past of the African Americans. He served to be the editor, columnist, lawyer and a prolific writer who tried to bring to light the history of African Americans and their issues of racism and discrimination.
W.E. Dubois was the first historian to explore the African American culture and their integrated lifestyle.
Carter. G .Woodson was known to be the father of Black History. His works aimed to save the rich heritage of the African Americans.
After the emergence of civil rights movement. African Americans proved to be resilient to any kind of oppression and raised their voice for enfranchisement and abolition of racism.
Foundation for the Founding Fathers and the First Principles
The Founding Fathers drew heavily upon English philosopher John Locke in establishing America's First Principles, most notably the recognition of unalienable rights, the Social Compact, and limited government.
