Horace M. Kallen (1882–1974), Professor of social philosophy, educator, and pupil of F. M. Alexander.
Horace Kallen was born in Austrian Silesia (now part of Poland), and his family moved to the US in 1887. He studied philosophy at Harvard University and at Oxford University. He taught at Princeton University, Harvard University (until 1911), and at the University of Wisconsin-Madison (until 1918). He then became a founding member and professor of the New School for Social Research in New York City, where he remained for the rest of his career.  
He was the author of several books advocating cultural pluralism. He is credited with both coining the term and the concept as early 1906 or 1907. He proposed the ideal that cultural diversity and national pride are compatible.
Horace Meyer Kallen *11 August1882 – †16 February 1974.