antipositivist and antinaturalist sociology. The term "culturalism" was introduced into English in his book, Cultural Reality (1919), and was translated into Polish as "kulturalizm"; previously Znaniecki had discussed the concept in Polish as "humanism" ("humanizm"). Elżbieta Hałas has insisted on a gradual evolution of Znaniecki's sociology of culture from Cultural Reality to Cultural Sciences, his most reviewed book, which was published more than thirty years later, in 1952. By that time, Znaniecki saw the cultural order as "axionormative", a universal concept encompassing “relationships among all kind of human actions” and the corresponding values. Hałas noted that this approach put him at odds with what was the dominant approach of the sociology of culture in the 1950s, whose most authoritative exponents were Americans who regarded Znaniecki's approach as typically European and hardly applicable to the analysis of culture in the United States. Other themes Znaniecki's work also touched on many other areas of sociology, such as intergroup conflict, urban sociology, and rural sociology. Works Znaniecki's first academic works, of the 1910s, were more philosophical than sociological in nature; beginning in the 1920s, his works were primarily sociological. His Cultural Reality (1919) was a synthesis of his philosophical thought, but the simultaneous publication of his much more popular The Polish Peasant in Europe and America (1918–1920) associated his name in academic circles primarily with sociology rather than with philosophy. His early works focused on analysis of culture and strongly criticized the principles of sociological naturalism. Szacki notes a puzzling gap in Znaniecki's research: while he was well-read in, and engaged with, most previous and current theories, he largely ignored the works of some notable sociologists of his time such as Max Weber, Vilfredo Pareto and Talcott Parsons. On the other hand, his works engaged closely with those of William I. Thomas, Georg Simmel, Robert E. Park, and Émile Durkheim. His The Method of Sociology first introduced his concept of divisions within subfields of sociology. His most notable works included two books published in the same year (1952): Modern Nationalities, and Cultural Sciences. The former is an analysis of the evolution of national-culture societies, and the latter presents a theoretical study of the relation between sociology and other sciences. Znaniecki never finished his magnum opus, Systematic Sociology, which would eventually be collected and published posthumously in its unfinished but final form as Social Relations and Social Roles: The Unfinished Systematic Sociology (1965). List