Authentication Score 3
Citation
Carnegie, Andrew. Triumphant Democracy. New York: Charles Scribner's Sons, 1886, ch. 16.
Social mobility
Lincoln, Abraham. "Speech to the 148th Ohio Regiment." 31 Aug. 1864, Washington, DC, USA.
Lincoln, Abraham. "Speech to 148th Ohio Regiment, Washington, D.C, August 31, 1864." Abraham Lincoln: Speeches and Writings 1859-1865, edited by Don E. Fehrenbacher. Library of America, 1989.
Harrison, Benjamin. "Inaugural Address." 4 Mar. 1889, East Portico, US Capitol Building, Washington, DC, USA.