Ngô Đình Diệm was a South Vietnamese politician who was the final prime minister of the State of Vietnam (1954–1955) and later the first president of South Vietnam from 1955 until his capture and assassination during the CIA-backed 1963 South Vietnamese coup.

Personalism is an intellectual stance that emphasizes the importance of human persons. Personalism exists in many different versions, and this makes it somewhat difficult to define as a philosophical and theological movement. Friedrich Schleiermacher first used the term personalism in print in 1799. One can trace the concept back to earlier thinkers in various parts of the world.