The human rights movement emerged in the 1970s, especially from former socialists in eastern and western Europe, with major contributions also from the United States and Latin America. The movement quickly gelled as social activism and political rhetoric in many nations put it high on the world agenda. By the 21st century, Moyn has argued, the human rights movement expanded beyond its original anti-totalitarianism to include numerous causes involving humanitarianism and social and economic development in the Third World.
Many of the basic ideas that animated the movement developed in the aftermath of the Second World War, culminating in the adoption of the Universal Declaration of Human Rights in Paris by the United Nations General Assembly in 1948. While the phrase "human rights" is relatively modern the intellectual foundations of the modern concept can be traced through the history of philosophy and the concepts of natural law rights and liberties as far back as the city states of Classical Greece and the development of Roman Law. The true forerunner of human rights discourse was the concept of natural rights which appeared as part of the medieval Natural law tradition, became prominent during the Enlightenment with such philosophers as John Locke, Francis Hutcheson, and Jean-Jacques Burlamaqui, and featured prominently in the political discourse of the American Revolution and the French Revolution.