Bronisław Kasper Malinowski (IPA: [ˌmaliˈnɔfski]; April 7, 1884 – May 16, 1942) was a Polish anthropologist widely considered to be one of the most important anthropologists of the twentieth century because of his pioneering work on ethnographic fieldwork, with which he also gave a major contribution to the study of Melanesia, and the study of reciprocity.