Vienna Declaration and Programme of Action
In the late industrial revolution, progressive American legal scholars began to use the term more, particularly Louis Brandeis and Roscoe Pound. From the early 20th century it was also embedded in international law and institutions; the preamble to establish the International Labour Organization recalled that "universal and lasting peace can be established only if it is based upon social justice." In the later 20th century, social justice was made central to the philosophy of the social contract, primarily by John Rawls in "A Theory of Justice" (1971). In 1993, the Vienna Declaration and Programme of Action treats social justice as a purpose of human rights education.