The concept of culture is central to anthropology, yet its definition and theoretical understanding have evolved significantly over time, reflecting shifts in anthropological thought and methodology.

Early Definitions and Unilineal Evolution (19th Century): The formal anthropological concept of culture emerged in the late 19th century. Edward B. Tylor, in his 1871 work Primitive Culture, provided one of the most influential early definitions: "Culture... is that complex whole which includes knowledge, belief, art, morals, law, custom, and any other capabilities and habits acquired by man as a member of society." This definition emphasized culture as learned, shared, and encompassing all aspects of human life. However, Tylor and other early evolutionists (like Lewis Henry Morgan) viewed cultures as progressing through fixed stages (e.g., savagery, barbarism, civilization), implying a universal trajectory and often ranking cultures hierarchically. This unilineal evolutionary perspective was foundational but later heavily critiqued.

Boasian Critique and Cultural Relativism (Early 20th Century): Franz Boas, often considered the father of American anthropology, spearheaded a major shift. He challenged the unilineal evolutionary model, arguing for historical particularism. Boas insisted that each culture has a unique history and must be understood on its own terms, rejecting universal stages of development. He emphasized intensive fieldwork, detailed ethnographic descriptions, and the idea that culture is learned, integrated, and profoundly shapes individual personality. Crucially, Boas introduced cultural relativism, advocating that one should not judge a culture by the standards of one's own, but rather understand it within its own context. His students, like Ruth Benedict and Margaret Mead, further explored the relationship between culture and personality.

Functionalist Perspectives (Early-Mid 20th Century): In Britain, functionalism emerged, focusing on how cultural institutions function to meet individual or societal needs. Bronislaw Malinowski, with his work among the Trobriand Islanders, argued that culture serves the biological and psychological needs of individuals (e.g., food, shelter, reproduction). A.R. Radcliffe-Brown, on the other hand, focused on structural functionalism, viewing culture as maintaining social solidarity and the equilibrium of the social structure. For him, cultural practices reinforced social order.

Symbolic/Interpretive Approaches (Mid-Late 20th Century): A significant turn occurred with the rise of symbolic and interpretive anthropology. Clifford Geertz famously defined culture as "a system of inherited conceptions expressed in symbolic forms by means of which men communicate, perpetuate, and develop their knowledge about and attitudes toward life." He advocated for "thick description," emphasizing the anthropologist's role in interpreting the layers of meaning embedded in cultural practices and symbols. Victor Turner similarly explored the power of symbols and rituals in creating and transforming social meaning, particularly in rites of passage.

Materialist and Ecological Approaches (Mid-Late 20th Century): Concurrently, materialist perspectives offered alternative explanations. Marvin Harris's cultural materialism argued that material conditions (technology, economy, environment) are primary determinants of social organization and ideology. Culture, in this view, is an adaptive response to material constraints. Julian Steward's cultural ecology focused on how cultures adapt to their environment, emphasizing the interaction between culture and environment in shaping cultural forms.

Postmodern and Critical Approaches (Late 20th Century - Present): The late 20th century saw postmodern and critical approaches challenge grand narratives and universal theories. These perspectives emphasized power relations, agency, hybridity, and the contested nature of cultural meanings. They critiqued the anthropologist's role in constructing cultural representations and highlighted issues of colonialism and representation. Contemporary anthropology often focuses on globalization, transnationalism, and the fluidity of cultural boundaries, recognizing culture as dynamic, contested, and constantly negotiated.

Contemporary Understanding: Today, the concept of culture is understood as a complex, dynamic, and multi-layered phenomenon. It encompasses shared meanings, values, beliefs, practices, and material objects that people use to make sense of their world and interact with each other. It is learned, transmitted, and constantly reinterpreted, acknowledging the interplay of agency and structure, local and global forces, and the importance of context in understanding cultural phenomena. Anthropologists now often speak of 'cultures' in the plural, recognizing diversity and internal variation rather than a monolithic entity.