C. A. W. Manning, Professor of International Relations at the LSE (1930–1962), was a key contributor to the formation of the discipline in Britain. He wrote on Jurisprudence, which was his main strength; on the League of Nations, of which he was a keen supporter; on South Africa, concerning which he gained notoriety as the defender of Apartheid; on International Relations as an independent academic discipline, which, to him, was due to the sui generis character of international society as a formally anarchical but substantively orderly social environment. He was a Rationalist in Martin Wight's sense, and early constructivist, who saw that the society of states as a social construct was subject to interpretation, reinterpretation, and reshaping.